The slope of the equation 3x + 4y = -12 is -3/4
Slope in math is defined as the ratio of the amount that y increases as x increases some amount
Here we have given the equation 3x + 4y = -12.
As we all know that the general form of the equation of the line is written as,
y = mx + c
here m refers the slope of the line and c refers the y intercept of the line.
Now, we have to convert the given equation into the general form then it can be look like the following,
=> 4y = -12 - 3x
=> y = -12/4 - 3x/4
It can be rewritten as,
=> y = -3x/4 - 12/4
Then the resulting slope is -3/4.
Complete Question:
What is the slope of the equation 3x + 4y = -12?
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What is the trigonometric ratio of tan 30 *?.
Tan 30 degrees has a value of 1/√3. 30° is represented by the radian symbol tan /6.
Trigonometric functions are crucial for much research, including those involving wave motion, light motion, the velocity of harmonic oscillators, and other topics.
Tan 30° has a value of 1/√3 in fractional form and 0.577 in decimal form.
Using trigonometric functions, the value of tan 30° is represented as follows:
Tan 30° is equal to (sec 2 30°-1)
Tan = 1/cot = 30°
=1/√3
There are several ways to calculate tan 30 degrees, including using the trigonometric ratio formula since we already know that tan x = Perpendicular / Base.
ABC with angle A being 30° in a right-angled triangle.
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The spanish Club is having a bake sale . you can buy a bag of trail mix and loaf of pumpkin bread for $24 . this situation can be represented with the system x + y = 11 and 3x + 2y = 24, where x represents the cost of a bag of trail mix and y represents the costs of a loaf of pumpkin bread , how much does each bag of trail mix and each loaf of pumpkin bread cost ??
Answer:
each bag of trail mix costs $2 and each loaf of pumpkin bread costs $9.
Step-by-step explanation:
To find the cost of each item, we need to solve the system of equations.
We can use substitution method:
3x + 2y = 24
x + y = 11
Solving for x in the second equation:
x = 11 - y
Substituting this into the first equation:
3(11 - y) + 2y = 24
Solving for y:
33 - 3y + 2y = 24
-y = -9
y = 9
Then we can use y = 9 in the equation x = 11 - y to find x:
x = 11 - 9 = 2
So each bag of trail mix costs $2 and each loaf of pumpkin bread costs $9.
1. In estimating the selected objects in terms of
Width and Mass, what difficulties did you encount
Explain
Estimating the width and mass of objects necessitates meticulous attention to detail, a thorough understanding of the measurement tools and techniques employed, and an awareness of any potential difficulties.
Estimating the width and mass of objects can be difficult in general for several reasons:
Precision of measurement: Depending on the tools used, the precision of measurement can affect the accuracy of the estimate. The shape of the object being measured can also have an impact on the estimate. It can be difficult, for example, to precisely measure the width of an irregularly shaped object.Object composition: The object's composition, such as its density or rigidity, can have an impact on the estimate.External factors such as temperature or humidity can affect the measurement, making it more difficult to obtain an accurate estimate.To learn more about mass.
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4. Which sum is the same as 6+4? F 5+6 H7+3 G9+2 J 4+5
Answer:
7+3
Step-by-step explanation:
6+4 = 10 and 7+3 = 10
In a race, Karen rose her bike for 1 1/2 hours and then swam for 45 minutes. How long did Karen spend riding her bike and swimming in the race? (1 hour = 60 minutes)
The total time Karen spent riding her bike and swimming in the race is 135 minutes.
What is algebra ?
Algebra is the study of variables and the rules for manipulating these variables in formulas; it is a unifying thread of almost all of mathematics.
To find the total time Karen spent riding her bike and swimming in the race, you need to add the time she spent riding her bike and the time she spent swimming.
Karen rode her bike for 1 1/2 hours, which is equivalent to 1.5 * 60 = 90 minutes.
She also swam for 45 minutes.
90 + 45 = 135,
The total time Karen spent riding her bike and swimming in the race is 135 minutes.
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Karen spent 135 minutes riding her bike and swimming in the race.
Algebra is a common thread that runs through practically all of mathematics. It involves the study of variables and the rules for manipulating them in formulas.
You must add the time Karen spent swimming and riding her bike to get the total amount of time she spent doing both during the race.
First, we need to convert Karen's bike riding time to minutes:
1 1/2 hours = 1 1/2 * 60 minutes = 90 minutes
Now we can add up Karen's bike riding time and swimming time:
90 minutes + 45 minutes = 135 minutes
So Karen spent 135 minutes riding her bike and swimming in the race.
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How many solutions does the linear equation 3x 11y 10 have?.
The linear equation 3x + 11y = 10 has one solution.
The given linear equation is 3x + 11y = 10. To find the number of solutions for this equation, we can use the following method:
1. Rewrite the equation in the form of y = mx + c, where m is the coefficient of x and c is the constant term.
3x + 11y = 10
-3x/11 = y -10/11
y = -3/11x +10/11
2. Check the slope and the y-intercept, if the slope is infinite, it means the equation is a vertical line and it has no solutions, if the y-intercept is infinite, it means the equation is a horizontal line and it has infinitely many solutions.
In this case, the slope is -3/11 which is a finite value, also the y-intercept is (0,10/11) which is a finite value, so the equation is not a vertical or horizontal line, it is a standard form of a linear equation, and it has a unique solution.
Therefore, the linear equation 3x + 11y = 10 has one solution.
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Given ABC with A(-4,1), B(8,-1), and C(-2,9), write the equation of the line containing
midsegment XZ in standard form, where X is the midpoint of AB and Z is the midpoint of
BC.
4x=y=8
4x+y=8
4x-y=-8
4x + y = -8
The equation of the line containing midsegment XZ in the standard form is:
y = 2x +0
What is the Equation of line?
The equation of a line is a mathematical representation of the relationship between the variables x and y on a coordinate plane. It is typically written in the form "y = mx + b", where m is the slope of the line and b is the y-intercept (the point where the line crosses the y-axis).
The equation of the line containing the midsegment of a triangle can be found by taking the average of the coordinates of the midpoints of the two line segments that make up the midsegment.
First, we need to find the midpoint of AB:
Midpoint of AB = ((-4+8)/2, (1+-1)/2) = (2,0)
Then, we need to find the midpoint of BC:
Midpoint of BC = ((8+-2)/2, (-1+9)/2) = (3,4)
The equation of line XZ can be found by taking the average of the coordinates of X and Z, and solving for y:
y = (0+4)/2 = 2
x = (2+3)/2 = 2.5
Hence, the equation of the line containing midsegment XZ in the standard form is:
y = 2x +0
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Solve 17²⁰¹⁷ - 17 without calculators
The square root of 17 is 4.123. Therefore, 1 √17 = 1 × 4.123 = 4.123.
What is square root ?
square root of quite a number is a price, which on multiplication through itself, gives the authentic number. The square root is an inverse approach of squaring a number. consequently, squares and rectangular roots are associated principles.
suppose x is the square root of y, then it is represented as x=√y, or we can specific the same equation as x2 = y. right here, ‘√’ is the unconventional image used to symbolize the foundation of numbers. The fine quantity, whilst extended by way of itself, represents the rectangular of the number.
The square root of the square of a positive range offers the unique quantity.
Now, 17^2 · 17^-5 = 17^2 - 5 = 17^-3 = 1 / 17^3
Solve 17²⁰¹⁷ - 17 is?
17²⁰¹⁷-17
= 17²⁰¹⁷×1
= 17²⁰¹⁷
Therefore, The square root of 17 is 4.123. Therefore, 1 √17 = 1 × 4.123 = 4.123.
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If I have £15.28 and I need £399.99 how much money will I need to save if I get £7.00 every Friday? And what day/date would that be?
Answer:
Step-by-step explanation:
You need to save 399.99 - 15.28 = £384.71
384.71 / 7 = 54.95
So, you will get the required amount 54 weeks on a Friday, starting from the Friday you start saving,
Is 1 a square number?.
Yes, 1 is a square number.
Now, According to the question:
Square numbers are those numbers that are produced by multiplying an integer to itself. If n is an integer, then [tex]n^2[/tex] is the square of n.
What are the examples of square numbers?
The examples for square numbers are:
[tex]6^2[/tex] = 36
[tex]10^2[/tex] = 10 x 10 = 100
[tex]15^2[/tex] = 15 x 15 = 225
[tex]12^2[/tex] = 12 x 12 = 144
When you multiply an integer (a “whole” number, positive, negative or zero) times itself, the resulting product is called a square number, or a perfect square or simply “a square.” So, 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers.
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What property of a regular hexagon makes this construction correct?
Step 1
: Draw a circle. Mark a point on it. Set the compass to the length of the radius.
Step 2
: Starting from the point on the circle, draw an arc that intersects the circle and mark the point of intersection.
Step 3
: From that point of intersection, draw another arc that intersects the circle.
Step 4
: Repeat until you have made 6 arcs.
Step 5
: Connect the 6
points to form a regular hexagon.
Answer:
the compass was used to locate all 6 vertices
Could the side lengths 4 5 10 form a triangle?.
No, it is not possible to draw a triangle.
This will be done by the property: the sum of two sides of a triangle should be more than the third side.
(4cm + 5cm) =10cm
9cm = 10cm
LHS<RHS
A triangle is not possible.
A triangle is a polygon with three edges and 3 vertices. The terminology for categorizing triangles is more than two thousand years vintage, having been defined on the first actual page of Euclid's elements.
In Euclidean geometry, any three factors, while non-collinear, decide a completely unique triangle and simultaneously, a unique plane (i.e. a -dimensional Euclidean space). In different words, there's best one plane that consists of that triangle, and every triangle is contained in some plane. If the entire geometry is only the Euclidean plane, there is the best one plane and all triangles are contained in it; however, in higher-dimensional Euclidean spaces, this is not real. this text is ready triangles in Euclidean geometry, and in particular, the Euclidean plane, except wherein otherwise stated.
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What is the inverse of the logarithmic function f/x Logg X?.
An exponential function F(y)=g^y (g power y).
The log function is one of the functions and We know that the inverse of a log function is an exponential. So, we know that the inverse of f(x) = log subb(x) is f^-1(y) = b^y. If the base is e and we are dealing with the natural log, then the inverse of f(x) = ln(x) is f^-1(y) = e^y.Rewriting these relationships substituting f(x) with y and f^-1(y) with x, we see that the inverse of y = log subb(x) is x = b^y and the inverse of y = ln(x) is x = e^y. Both the inverse and the original function state the same relationship,
so now,
f(x)=log base g x.
g^f(x)=x
g^y=f(y).
f(y)=g^y.
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In 2010, the population of a city was 93,000. From 2010 to 2015, the population grew by 8%. From 2015 to 2020, it fell by 4%. How much did the population grow from 2010 to 2015, to the nearest 100 people?
Answer:
I think its 8
Step-by-step explanation:
Because from 2010 to 2015 population grew by 8•/• that mean 8 people per 100
After 12 years, an account with a 1.75% annual interest rate compounded continuously is worth a total of $8,327.94. What is the value of the principal investment? Round the answer to the nearest penny.
$1,577.44
$5,479.75
$5,666.74
$6,750.50
Answer:
$6750.50
Step-by-step explanation:
F = Pe^(rt)
8327.94 = P × e^(0.0175 × 12)
P = 8327.94/e^0.21
P = 8327.94/1.23376806
P = 6750.5
Suppose that x and y vary inversely, and x = 12 when y = 8 . Write the function that models the inverse variation.
Answer:
96/x
Step-by-step explanation:
When two variables x and y vary inversely, their product is a constant. Therefore, the function that models the inverse variation between x and y is:
x*y = k
where k is the constant of proportionality.
We can use the given information to find the value of k:
x = 12 when y = 8
so, k = xy = 128 = 96
Now we can use this value of k to write the function that models the inverse variation:
x*y = 96
To find the inverse variation, we divide both sides by y,
x = 96/y
Alternatively, we can write y = 96/x
So, the function that models the inverse variation between x and y is either x = 96/y or y = 96/x
A college student is choosing between two data plans for her new cell phone. Both plans include an allowance of 2 gigabytes of data per month. The monthly cost of each option can be seen as a function and represented with an equation:
Option A: `A(x)=60`
Option B: `B(x)=10x+25`
In each function, the input, `x`, represents the gigabytes of data used over the monthly allowance.
Describe each data plan in words.
The functions for the total cost per month for data use are linear in each of the given options.
Correct responses;
1. A(1) = 60, B(1) = 35
2. A(7.5) = 60, B(7.5) = 100
3. The monthly charge for Option A fixed. The monthly charge for Option B includes a fixed monthly fee and $10 per gigabyte used.
4. Please find attached the combined graph of Option A and Option B. Option B is more affordable when the (extra) data usage is less than 3.5 gigabytes each month.
The amount of gigabytes of data the student would have for $50 is 2.5 gigabytes.
What is an expression?Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
The given parameters are;
Both plans data allowance per month = 2 gigabytes
The monthly cost for each option is;
Option A: A(x) = 60 = Constant
Option B: B(x) = 10·x + 25
Solution:
1. The values of A(1) and B(1) are;
A(1) = 60
B(1) = 10 × 1 + 25 = 35
Therefore;
A(1) = $60
B(1) = $35
2. The values of A(7.5), and B(7.5) are;
A(7.5) = 60
B(7.5) = 10 × 7.5 + 25 = 100
A(7.5) = $60
B(7.5) = $100
3. The description of each data plan are;
Option A
The data plan of option A has a fixed charge of $60
Option B
The charges on the data plan on option B consist of a fixed monthly charge of $25, and $10 per gigabyte of data used.
4. Please find attached the graph of the functions of Option A and Option B. From the graph, the most affordable plan to use based on the data usage is;
Option B; If the data used a month, x < 3.5 gigabytes
Option A; If the data used a month, x > 3.5 gigabytes
Either Option A or Option B if the data usage per month is exactly 3.5 gigabytes
The amount the student budgets per month = is $50
By using Option B, we have;
B(x) = 10·x + 25 = 50
10·x = 50 - 25 = 25
x = 25 / 10 = 2.5
At $50, the amount of gigabytes the student can get is x = 2.5 gigabytes
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Ozzie has a Visa with a $2000 limit and a balance of $450; a store credit card with a $500 limit and a $200 balance; and a joint card with his mom with a $5000 limit and a $700 balance.
What’s Ozzie’s credit utilization on:
a. His Visa?
b. His store credit card?
c. The joint card with his mom?
What’s Ozzie’s overall credit utilization?
Ozzie works extra hours one week and receives an extra $75 in his paycheck. Which debt should he put that money toward? Why?
The values of the credit utilization are
Visa = 22.5%Store credit = 40%With his mum = 14%Overall = 13.5%He should pay highest interest debt first
How to determine Ozzie’s credit utilization?a. His Visa?
Here, we are given that
$2000 limit and a balance of $450
So, we have
Ozzie's credit utilization on his Visa is
Utilization = (450/2000) * 100 = 22.5%
b. His store credit card?
Here, we are given that
$500 limit and a $200 balance
So, we have
Ozzie's credit utilization on his store credit card is
Utilization = (200/500) * 100 = 40%
c. The joint card with his mom?
Using the same formula, we have
Ozzie's credit utilization on the joint card with his mom is (700/5000) * 100 = 14%
Overall credit utilization
This is calculated as:
Ozzie's overall credit utilization is the sum of his balances divided by the sum of his credit limits
So, we have
Utilization = (450 + 200 + 700) / (2000 + 500 + 5000) = 13.5%.
Which debt should he put that money toward? Why?The debt with the highest interest rate first. This is because high-interest debt will cost more in the long run, so paying it off sooner will save money on interest charges.
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How do you find a specific term in a binomial expansion?.
The easiest way to find a specific term in a binomial expansion is to use the binomial theorem.
The binomial theorem is a fundamental theorem in mathematics that is used to expand expressions which involve two terms, known as binomials, raised to a power.
The binomial theorem states that for any non-negative integer n, the expansion of (x+y)ⁿ is given by the sum of all terms of the form (xⁿ-k)(y^k)/k! where k ranges from 0 to n. This theorem can be used to calculate any term of a binomial expansion.
For example, to calculate the third term of (x+y)⁵, set k = 2 and substitute the appropriate values into the expression (x⁵-2)(y²)/2! which gives 5x³y². This is the third term of (x+y)⁵. The binomial theorem is a powerful tool that can be used to simplify, expand and simplify expressions involving binomials.
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At a football stadium, 2% of the fans in attendance were teenagers. If there were 220 teenagers at the football stadium, what was the total number of people at the stadium?
The total number of people at the stadium is 11000.
What is percentage?A percentage is a number or ratio that can be expressed as a fraction of 100. A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.
here, we have,
At a football stadium, 2% of the fans in attendance were teenagers.
If there were 220 teenagers at the football stadium.
the total number of people at the stadium= 220*100/2
=1100
Hence, the total number of people at the stadium is 11000.
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What are the zeros of the polynomial function f/x )= x3 2x2 − X − 2?.
The zeros of polynomial function f(x) = x³ + 2x² -x - 2 are x = -2, x = 1 and x = -1
Here, we have been given polynomial function f(x) = x³ + 2x² -x - 2
The definition of zeros of function states that zeros of a function are nothing but the values of the variable of the function that makes the function value equal to 0.
To find the zeros of function f(x), we need to equate f(x) to zero then solve it for x.
⇒ f(x) = 0
⇒ x³ + 2x² -x - 2 = 0
⇒ x²(x + 2) -1(x + 2) = 0 ............(Seperate out like terms)
⇒ (x + 2)(x² - 1) = 0 .............(factor out like terms)
⇒ (x + 2)(x + 1)(x - 1) = 0
⇒ (x + 2) = 0 OR (x + 1) = 0 OR (x - 1) = 0
Thus x = -2, x = 1 and x = -1 are zeros.
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The complete question is:
What are the zeros of the polynomial function f(x)= x³ + 2x² -x - 2?
This is an equation puzzle.
Fill in the blanks so that each row and column makes a true equation. (first puzzle)
This is an equation puzzle.
Click on each blank to change the sign so that each row and column makes a true equation. (second puzzle)
Answer:
See pictures:
What is the vertex form of Y X² 8x 3?.
The vertex form of the quadratic function is f(x) = x² + 8x + 3 is (x + 4)² = y +13.
The term Vertex form of a quadratic equation refers as
=> (x - h)² = 4a (y - k) form or in another written as,
=> (y - k)² = 4a (x - h) form depending on whether the square is on x-term or y-term respectively.
Here we have given quadratic function is that is written f(x) = x² + 8x + 3
And in the given equation square term is for x.
As we all know that equation must be reduced to (x - h)² = 4a (y - k) form.
Then here we know that we have
=> y = f(x) = x² + 8x + 3
Now we have to completing the square,
=> y = (x² + 8x +16) -16 + 3
Then it can be written by using the factorize the expression
=> y = (x + 4)² -13
Now we have to rewrite the expression, then we get,
=> y + 13 = (x + 4)²
Then resulting vertex form of the expression as,
=> (x + 4)² = y +13
Complete Question:
What is the vertex form of f(x) = x² + 8x + 3?
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What is associative property of rational numbers?.
The associative property of rational numbers shows that addition and multiplication are associative with rational numbers. For x,y,z,p,r,q∈Q
(x + y) + z = x + (y + z)p × (q × r) = (p × q) × rThe associative property of rational numbers is defined as on adding or multiplying any three rational numbers leaves the same result no matter how the numbers are grouped. But if the order of the numbers in subtraction or division changes, the result will also change.
For addition : A, B, C belong to rational numbers (A + B) + C = A + (B + C). For example, (1/3 + 1/3) + 1/2 = 1/3 + (1/3 + 1/2)
= 7/6. Addition is said to be associative for rational numbers.
For multiplication: Multiplication is expressed as (A × B) × C = A × (B × C). For example: (1/3 × 1/4) × 1/2 = 1/4 × (1/3 × 1/2)
= 1/24 = 1/24. It turns out that multiplication is associative for rational numbers. However, division and subtraction operations do not follow the associative properties of rational numbers.
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Ngela practice the piano for 2 1/2 hour on friday 2 1/3 hour on aturday and unday 3 2/3 hour how long angela practice the piano over the weekend
Angela practiced piano during the weekend for 6 hours.
According to the question,
Amount Angela spent on Saturday = [tex]2\frac{1}{3}[/tex]
Amount Angela spent on Sunday = [tex]3\frac{2}{3}[/tex]
To find out the total amount spent on both days of the weekend =
The amount that Angela spent on Saturday + the amount that Angela spent on Sunday
= [tex]2\frac{1}{3}[/tex] (otherwise expressed as 7/3) + [tex]3\frac{2}{3}[/tex] (otherwise expressed as 11/3)
[tex]= \frac{7}{3} + \frac{11}{3}[/tex]
[tex]= \frac{7 + 11}{3}[/tex] ( using addition)
= [tex]\frac{18}{3}[/tex] = 6 hours
Noted, Friday’s value was not added because it didn’t fall on the weekend.
The denominators of both fractions are the alike (3), thereby it was used to factor out the numerators (7) and (11), and subsequently arrive at the final answer which is 6 hours.
So, Angela practiced for 6 hours.
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What is a 3 4 5 triangle called?.
A unique type of right triangle known as a Pythagorean triple has lengths on all three sides that are whole numbers.
The 3-4-5 triangle, with a hypotenuse of 5 and sides 3 and 4, is the most well-known and smallest of the Pythagorean triples.
Are all three, four, and five triangles right triangles?The 3 : 4 : In arithmetic progression, the only right triangles with edges are the five triangles. Pythagorean triple-based triangles are Heronian, with an integer area and integer sides.
What exactly is the 3-4-5 Right Triangle?A right triangle with side lengths that are 3:4:5 is called a 3-4-5 right triangle. To put it another way, Pythagorean Triples are the sides-to-side ratios of a 3-4-5 triangle. This ratio can be stated as follows: Side 1: Side 2: 3n = hypotenuse: 4n: 5n = 3: 4: 5.
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Paula' Pizza Parlor ue the following ingredient to make pizza. Number of Pizza Sauce (oz) Cheee (oz)
4 28 16
5
At thi rate, how much auce and cheee will Paula ue to make 5 pizza?
Paula will use 20 oz of sauce and 80 oz of cheese to make 5 pizzas.
We can use the rate of use of pizza sauce and cheese to determine how much of each ingredient Paula will use to make 5 pizzas.
From the information provided, we can see that for every 4 oz of sauce, Paula uses 16 oz of cheese. We can use this ratio to determine the amount of sauce and cheese used for any number of pizzas.
To make 5 pizzas, Paula will use 4 x 5 = 20 oz of sauce and 16 x 5 = 80 oz of cheese.
So, Paula will use 20 oz of sauce and 80 oz of cheese to make 5 pizzas.
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Jacob goes to the storeto buy items for the week. At walmart hebuy bread for 2.99 milk for 4.50 a bushel of cilantro for .50 detergant for 13.99 nori for 2.99 a wrench for 5.99 toilet paper for 21.99 and sandwhich meat for 5.99
The total cost of the items that Jacob bought will be 58.94.
How to calculate the total cost of the items?A word problem in mathematics simply refers to a question that is written as a sentence or in some cases more than one sentence which requires an individual to use his or her mathematics knowledge to solve the real life scenario given.
In this case, Jacob goes to the storeto buy items for the week. At walmart hebuy bread for 2.99 milk for 4.50 a bushel of cilantro for .50 detergant for 13.99 nori for 2.99 a wrench for 5.99 toilet paper for 21.99 and sandwhich meat for 5.99.
The total cost will be:
= 2.99 + 4.50 + 0.50 + 13.99 + 2.99 + 5.99 + 21.99 + 5.99
= 58.94
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Complete question
Jacob goes to the storeto buy items for the week. At walmart hebuy bread for 2.99 milk for 4.50 a bushel of cilantro for .50 detergant for 13.99 nori for 2.99 a wrench for 5.99 toilet paper for 21.99 and sandwhich meat for 5.99. Calculate the total cost
Jayden and Carson are selling T-shirts and sweatshirts for a fundraiser. Jayden sells 9 T-shirts and 3 sweatshirts for $420. Carson sells 1 T-shirt and 6 sweatshirts for $296. Solve the system of equations for this situation.
Part A
Solve the system by ELIMINATION!! Show your work!
Answer:
a T-shirt = $31
a sweatshirt = $44
Step-by-step explanation:
Let T represent T-shirts and S represent sweatshirts.
Jayden sells 9 T-shirts and 3 sweatshirts for $420:
9T + 3S = 420
Carson sells 1 T-shirt and 6 sweatshirts for $296:
T + 6S = 296
Multiply second equation with -9-9T - 54S = -2,664
Now find the the sum of two equation9T - 9T + 3S - 54S = 420 - 2,664
-51S = -2,244
Divide both sides by -51S = 44 is the price for a sweatshirt, for the price of a T-shirt:
T + 6S = 296
Rewrite equation by replacing S by 44T + 6×44 = 296
T + 264 = 296
Subtract 264 from boths sidesT = 31
A marble tile meaure 25 cm by 20 cm. How many tile will be required to cover a wall of ize 4cm by 3m
240 tiles are required to cover a wall of size 4m by 3m
Let l be the length of the wall and b be the breadth of the wall
Then, l = 4m and b = 3m
Area of the wall is given by,
Area = length × breadth
= 4 m x 3 m
= 12 m^{2}
Also given that area of one marble tile = 25 cm x 20 cm
= 500 cm^{2}
Converting the measure of area of one marble tile in metres
= 0.05 m2
[Since 1 m^{2} = 10000 cm^{2}]
Now,
Area of one marble tile is 0.05 m^{2}
Number of tiles required to cover the wall
= Area of wall/ Area of one marble tile
= 12/0.05
= 240 tiles
Therefore, 240 tiles are required to cover a wall of size 4m by 3m or area of 12 m²
To know more about area click here :
brainly.com/question/7667177
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