Molly's earning increased by 25%
How to calculate the percentage increase ?Percentage increase formula is
Increase/ original value × 100
The first step is to calculate the increase by subtracting 120 from 160
160 -120
= 40
Therefore the percentage increase can be calculated as follows
= 40/160 × 100
= 0.25 × 100
= 25
Hence Molly's earnings increased by 25%
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Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions.
To solve problems, construct one-variable equations and inequalities.
How to use them to solve problems?As opposed to an inequality, which links two different values, an equation declares that two expressions are equal.
Create one-variable equations and inequalities, then utilize them to solve issues.
Include simple rational and exponential equations as well as those resulting from linear and quadratic functions.
In order to answer word problems, students should be able to decipher them and create equations and inequalities.
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3x3 what is the sum to this..?
Answer:
9
Step-by-step explanation:
3x3=9
Answer:
the sum is 9
Step-by-step explanation:
3×1=3
3×2=6
3×3=9
y varies directly as x. Describe how the value of y
changes when the value of x is tripled.
Answer: When x is tripled, y will be tripled.
Step-by-step explanation:
Since y varies directly as x, whatever happens to x will happen to y. This means that if x is tripled, y will also be tripled.
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how do i subtract inteargers
Answer:
You remove the difference between the two numbers from each other. E.g., 5-2=3, and 6-4=2.
Step-by-step explanation:
Two tents are in the shape of hemispheres, with circular floors. The ratio of their floor areas is 9: 12.25 . If the diameter of the smaller tent is 6 feet, what is the volume of the larger tent? Round to the nearest tenth.
The volume of the larger tent in the shape of hemispheres, with circular floors, is 89.8 cubic feet.
If the diameter of the smaller tent is 6 feet, then its radius is 3 feet. Solving for the area of its circular floor,
A = πr^2
A = π(3 feet)^2
A = 9π square feet
Using the ratio of the floor areas of the two tents, calculate the area of the circular floor of the larger tent.
9 : 12.25 = 9π square feet : x
where x = area of the circular floor of the larger tent
9x = 12.25(9π)
x = 12.25 π square feet
If the area of the circular floor of the larger tent is 12.25 π square feet, then solving for its radius,
A = πr^2
12.25 π square feet = πr^2
r = 3.5 feet
Hemisphere refers to half of a sphere and its volume is given by the formula V = 2/3πr^3, where r is the radius.
V = 2/3πr^3
V = 2/3 π (3.5 feet)^3
V = 89.79719002 cubic feet
Rounding off to the nearest tenth.
V = 89.8 cubic feet
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Solve. Find the area of a pantry shelf that measures 3 yards by 3/7 yard.
Answer:
The answer is 9/7 yards.
Determine whether the following statement is always, sometimes, or never true. Explain your reasoning.
When using the distributive property, if the term outside the parentheses is negative, then the sign of each term inside the parentheses will change: Always TRUE
What do we mean by distributive property?The distributive property of binary numbers in mathematics generalizes the distributive law, which states that equality is always true in elementary algebra. In elementary arithmetic, for example, one has According to one, multiplication distributes over addition.If the term outside the parenthesis is negative when using the distributive property, the sign of each term inside the parentheses will always change.Example can be: -1(27 - 55) = -27 + 55
It is because of the following reason that when we multiply two numbers:
(positive number (+)) × (positive number (+)) = (positive number (+))(positive number (+)) × (negative number (-)) = (negative number (-))(negative number (-)) × (positive number (+)) = (negative number (-))(negative number (-)) × (negative number (-)) = (positive number (+))Therefore, the statement "when using the distributive property, if the term outside the parentheses is negative, then the sign of each term inside the parentheses will change" is Always TRUE.
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The complete question is given below;
Determine whether the following statement is always, sometimes, or never true. Explain your reasoning. When using the distributive property, if the term outside the parentheses is negative, then the sign of each term inside the parentheses will change.
If $9237.05 is put into an account paying %8.82/ a compounding yearly, how much interest will be earned after 16.7 years?
Answer:
$28,656.82
Step-by-step explanation:
I used the compound interest calculator
A = P(1 + r/100)ⁿ
where A = amount accrued, P = investment amount r = rate% and n = number of years
r = 8.82% = 8.82/100 = 0.082 so 1 + r/100 = 1.0882
[tex]\\A = P(1.0882)^{16.7} = \$37,893.87\\\\\mathrm {Interest} = \$37,893.87 - \$9237.05 = \$28,656.82[/tex]
Answer:
$28,656.82
Step-by-step explanation:
Annual Compound Interest Formula
[tex]\large \text{$ \sf I=P\left(1+r\right)^{t} -P$}[/tex]
where:
I = Total interest earned.P = Principal amount invested.r = Interest rate (in decimal form).t = Time (in years).Given:
P = $9237.05r = 8.82% = 0.0882t = 16.7 yearsSubstitute the given values into the formula and solve for I:
[tex]\implies \sf I=9237.05(1+0.0882)^{16.7}-9237.05[/tex]
[tex]\implies \sf I=9237.05(1.0882)^{16.7}-9237.05[/tex]
[tex]\implies \sf I=9237.05(4.1023777...)-9237.05[/tex]
[tex]\implies \sf I=37893.8685...-9237.05[/tex]
[tex]\implies \sf I=28656.8185...[/tex]
Therefore, the amount of interest that will be earned after 16.7 years is $28,656.82 (nearest cent).
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What sets (types or categories) of numbers do we use as the input to functions that represent sequences?
Answer:
electrical is a good servant but master
The arithmetic mean of two terms in an arithmetic sequence is -6 . One term is -20 . Find the other term.
The other term is +8.
How to find the other term?A recursive formula is one that defines each term in a sequence by reference to the one before it. The following parameters are defined using the recursive formules:
1. The initial term in the series.
2. The general rule for determining any term from its preceding term.
Formula for the Arithmetic Mean
The ratio of the sum of the items to the total number of items is the arithmetic mean, which is the simplest way to measure central tendency.It is regarded as the most accurate way to measure central tendency. The distribution of the data and the intended use of the data both influence the average that is chosen.
[tex]arithmetic \: mean = \frac{a1 + a2 + a3 + a4 + a5 + .........an}{n} [/tex]
given that
The arithmetic mean of two terms in an arithmetic sequence is -6.One term is -20 .
now, find the other term
[tex]arithmetic \: mean = \frac{a + b}{ 2} [/tex]
[tex] - 6 = \frac{( - 20) + b}{2} [/tex]
[tex]2 \times - 6 = - 20 + b[/tex]
[tex] - 12 + 20 = b[/tex]
[tex]b = 8[/tex]
Hence,the other term is +8.
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What can you say about and based on the sum of their angles? How are the angles related?
Answer: Do you have a picture of the problem so it will be more sense?
Step-by-step explanation:
Two different tests to write k/4 +16
Step-by-step explanation:
\begin{gathered}6x - 2y = 6 \\ 6x = 6 + 2y \\ x = \frac{6 + 2y}{6} \end{gathered}
6x−2y=6
6x=6+2y
x=
6
6+2y
Write two absolute value functions such that they have a common vertex in Quadrant III and one is the reflection of the other in a horizontal line.
The functions
y = -|x + 4| - 5y=−∣x+4∣−5
y = |x + 4| - 5y=∣x+4∣−5
Both these functions have got a common vertex in the third Quadrant.
They are the reflections of each other in a horizontal line.
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help I'll mark brainliest
Answer:
2 + (-7) = -5
Step-by-step explanation:
The arrow pointing down is telling you to add a negative. You cannot add positive numbers and get a negative number as your answer.
Taking away -7 from 2 gives you -5
Record your answers on the answer sheet provided by your teacher or on a sheet of paper.
Suppose line l contains points A, B , and C , If A B=7 inches, A C=32 inches, and point B is between points A and C , what is the length of BC? Express your answer in inches.
Length of BC is 25 inches.
Here,
Line l contains points A, B and C.
A B =7 inches, A C = 32 inches, and point B is between points A and C.
We have to find the length of BC in inches.
What are Collinear points?
If two or more points are lie on a straight line then points are called Collinear points.
Now,
Line l contains points A, B and C.
Point B is between points A and C.
Length of A B = 7 inches and A C = 32 inches
Hence, Length of BC = Length of AC - Length of A B
= 32 - 7 = 25 inches.
Therefore, Length of BC is 25 inches.
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The table shows the elevation above sea level of the lowest and highest points in the United States.
Location
Death Valley
Mount McKinley/Denali
Elevation Above Sea Level (feet)
-282
20,310
Choose three correct statements.
A. Death Valley is -282 feet below sea level.
B. Death Valley is 1-2821 feet below sea level.
C. Death Valley is 1-2821 feet above sea level.
D. Mount McKinley/Denali is 120, 310| feet below sea level.
E. Mount McKinley/Denall is-120, 3101 feet below sea level.
F. Mount McKinley/Denali is 1-20, 3101 feet above sea level.
Location Death Valley, Mount McKinley/Denali Elevation Above Sea Level (feet), then the statement B , statement E , statement F are correct.
Death Valley is |-282| feet below sea level. Mount McKinley/Denali is |-20, 310| feet below sea level.Mount McKinley/Denali is |-20, 310| feet above sea level.These three statements are correct.
The table shows the elevation above sea level of the lowest and highest points in the United States.
Location Death Valley
Mount McKinley/Denali
Elevation Above Sea Level (feet)
So, we can write,
Death Valley is |-282| feet below sea level.Mount McKinley/Denali is |-20, 310| feet below sea level.Mount McKinley/Denali is |-20, 310| feet above sea level.You are subtracting the two numbers. Note however, that 282 feet below the sea level = -282
Subtract.
⇒ 20310 - (-282)
Note that two negatives = one positive
⇒ 20310 + 282
⇒ 20592 feet
Therefore, The statement B , statement E , statement F are correct.
Hence,
Death Valley is |-282| feet below sea level. Mount McKinley/Denali is |-20, 310| feet below sea level.Mount McKinley/Denali is |-20, 310| feet above sea level.These three statements are correct.
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Problem: using the digits -9 to 9 at most one time each, place a digit on each box to create an equation whose solution is a positive whole number. ("_" is what i need to fill in and the "/" are fractions)
_/_(x)+_/_= _
Considering division signal rules, one possible example of an equation that results in a positive number is:
-9/-3 + 3/1 = 6.
When does a division results in a positive number?A division(fraction) results in a positive numbers if the two terms have the same signal, either both positive or both negative.
Hence, to ensure an expression with a positive result in this problem, the terms in each division got to have the same signal, as the example that follows:
-9/-3 + 3/1 = 6.
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Paul collects comic books. He has 20 books in his collection, and he adds 3 per month. In how many months will he have a total of 44 books in his collection?
F. 5
G. 6
H. 8
J. 15
In 8 months he will have a total of 44 books in his collection.
The correct answer is an option (H)
In this question,
Paul collects comic books. He has 20 books in his collection, and he adds 3 per month.
We need to find the number of months required to have a total of 44 books in his collection.
Let n be the required number of months.
From given information, we get an equation,
20 + 3n = 44
We solve above equation to find the required number of months.
20 + 3n - 20 = 44 - 20
3n = 24
n = 8
Therefore, in 8 months he will have a total of 44 books in his collection.
The correct answer is an option (H)
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96240 is divisible by 2,3,5,10 true or false
True
It's true, 96240 is divisible by 2,3,5,10
Hope this helps!
Use the fact that a/b / c/d = a/b ÷ c/d to simplify each rational expression. State any restrictions on the variables.
9m + 6n / m² n² / 12m + 8n/5 m²
Simplify.
2 + 8 - 2 [32 + 5 (1 + 2)]}
Your answer should be - 84.
Explanation:
Starting equation: [tex]2\:+\:8\:-\:2\:\left[32\:+\:5\:\left(1\:+\:2\right)\right][/tex]
-Calculate within parentheses [32 + 5 (1+2)] = 47.
Remaining equation: 2 + 8 - 2 x 47
-Multiply and divide (left to right) 2 x 47 = 94
Remaining equation: 2 + 8 - 94
-Add and subtract (left to right) 2 + 8 - 94 = -84
Your final answer is -84
-----------------------------------------------------------
Hope this helps!
Have a great day and God bless! :)
Write a relationship for a function whose hx values are 6 less than the cube of x
The mathematical expression from the algebraic expression is a x^3 - 6.
According to the statement
We have to find that the expression of the statement in the mathematical form.
So, For this purpose, we know that the
An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.
From the given information:
The hx values are 6 less than the cube of x
Then
To convert into the mathematical form:
The cube of the x is in the mathematical form is a x^3
Then
And the 6 less than the cube
And in the mathematical form it becomes the
x^3 - 6.
So, The mathematical expression from the algebraic expression is a x^3 - 6.
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Multiply Which equation is the best choice
Answer:
second option
Step-by-step explanation:
(2 [tex]\frac{4}{5}[/tex] )( - 5 [tex]\frac{2}{3}[/tex] ) ← convert mixed numbers to improper fractions
= [tex]\frac{14}{5}[/tex] × - [tex]\frac{17}{3}[/tex]
= - [tex]\frac{14(17)}{5(3)}[/tex]
= - [tex]\frac{238}{15}[/tex]
= - 15 [tex]\frac{13}{15}[/tex]
What is the value of this product
Answer:
The value of the product is 2²
Write a coordinate proof to prove that Δ A B C is an isosceles triangle if the vertices are A(0,0), B(a, b) , and C(2 a, 0) .
An isosceles triangle is one with two equal-length sides. ΔABC is an isosceles triangle.
What is the distance between two points ( p,q) and (x,y)?The shortest distance (length of the straight line segment's length connecting both given points) between points ( p,q) and (x,y) is:
D = √[(x-p)² + (y-q)²] units.
Given that the coordinates of the vertices of the triangle are A(0,0), B(a, b), and C(2a, 0). Now, to prove that the given triangle is an isosceles triangle we need to find the length of each side of the triangle.
AB = √[(x₂-x₁)² + (y₂-y₁)²]
= √[(a - 0)² + (b - 0)²]
= √(a² + b²)
BC = √[(x₂-x₁)² + (y₂-y₁)²]
= √[(2a - a)² + (0 - b)²]
= √(a² + b²)
AC = √[(x₂-x₁)² + (y₂-y₁)²]
= √[(2a - 0)² + (0 - 0)²]
= √4a²
= 2a
Since the length AB and BC are the same, while the length of AC is different, therefore, ΔABC is an isosceles triangle.
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Tyrone needs 50 volunteers for a concert.
Tyrone has 20% more volunteers than
he needs. Tyrone assigns 15% of the total
volunteers to the stage area. How many
volunteers does Tyrone assign to the
stage area?
Answer:
go
Step-by-step explanation:
i don't understand this shirty app
Answer: 9
Step-by-step explanation:
20% of 50 is 10. So, he has a total of 60 volunteers. He uses 15% of that for the stage area, and 15% of 60 is 9. So, Tyrone assigned 9 volunteers to the stage area.
Square root of 9 =3=3=3 and 1 half + 1 half
identify the inequalities A, B , and C for which the given ordered pair is a solution.
A. x+y ≤ 2
B. y ≤ (3/2)x-1
C. y>-(1/3)x-2
(-8,-11)
The inequality y ≤ (3/2)x-1 satisfies the point (-8, -11) option (B) y ≤ (3/2)x-1 is correct.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
It is given that:
The point is (-8, -11)
As we have inequalities shown in the option:
After plotting the inequality in the graph:
From the graph, the point lies in the solution region of the inequality y ≤ (3/2)x-1 which means the point (-8, -11) satisfies the inequality.
Thus, the inequality y ≤ (3/2)x-1 satisfies the point (-8, -11) option (B) y ≤ (3/2)x-1 is correct.
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Jonathan earns $250 plus $40 for every house he paints
Answer:
250 + 40x
Step-by-step explanation:
x = every house he paints .
im not sure what you want but in case its an equation , here you go .
Answer:
250 + 40x
Step-by-step explanation:
literally what the dude above me said heh
Write the equation of the circle that passes through the given point and has a center at the origin. (Hint: You can use the distance formula to find the radius.) (-2,3)
The equation of the circle that passes through the point (-2 , 3) and has a center at the origin is x^2 + y^2 = 13.
Using the distance formula, get the radius of the circle by solving for the distance between the center and the point (-2 , 3).
radius = distance = √(x2 - x1)^2 + (y2 - y1)^2
radius = √(-2 - 0)^2 + (3 - 0)^2
radius= √4 + 9
radius = √13
The standard form of the equation of the circle is given by (x - h)^2 + (y - k)^2 = r^2, where (h , k) is the location of the center and r is the radius of the circle.
Given the radius and center of the circle, substitute these values to the standard form of the equation of the circle.
(x - h)^2 + (y - k)^2 = r^2
where (h , k) = (0 , 0)
r = √13
(x - 0)^2 + (y - 0)^2 = (√13)^2
x^2 + y^2 = 13
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