Mary has 21 coins whose total value is ksh 72.there are twice as many five shilings coins as there are ten shilings coins.the rest are one shilings coin.find the number of ten shilings coin that mary has
Step-by-step explanation:
Value from:
1 shilling coins
=
1
(
21
−
3
x
)
=
21
−
3
x
5 shilling coins
=
5
(
2
x
)
=
10
x
10 shilling coins
=
10
(
x
)
=
10
x
Total value
=
72
shillings
i.e.
21
−
3
x
+
10
x
+
10
x
=
72
shillings
−
3
x
+
10
x
+
10
x
=
72
−
21
17
x
=
51
x
=
51
17
x
=
3
∴
Mary has
3 10
shilling coins.
What is the equation of the line that passes through the point (-1,6)and has a slope of −1
Answer:
y = -x + 5
Step-by-step explanation:
slop m = -1, x = -1, y = 6
y = mx + b
6 = (-1)(-1) + b
6 = 1 + b
b = 5
so y = -x + 5
Please answer and explain!!
Answer:
m = 8
Step-by-step explanation:
I looked at the line 8 and looked at m and noticed they're literally the same length. so m = 8.
If the dimensions of a photo are 2 inches by 3 inches and the dimensions of a poster are 8 inches by 12 inches, are the photo and poster similar? Explain.
The photo and poster of known dimensions are similar figures at a ratio of 4.
What is a proportion?A proportion is a value that allows us to know variable values of a set of elements that are related by means of a constant.
If we want to know if these two figures are similar or proportional, they must be at a ratio, (both dimensions), for this we formulate the following:
2 is to 83 is to 12This will generate an equation:
2x = 8
3x = 8
When solving for both values of "x" it must be exactly the same:
x = 8/2 = 4x = 12/3 = 4, The picture and poster are similar.Learn more about numerical proportions in:
https://brainly.com/question/18437927
#SPJ4
The slope of a non-vertical line is the ratio of the ___ to the ____ between any two points on the line
The slope of the line is the ratio of the rise to the run, or rise divided by the run.
What is slope?In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction. [1] The letter m is frequently used to represent slope; the reason for this usage is unclear, although it can be found in O'Brien's (1844)[2] and Todhunter's (1888)[3] formulations of the equation for a straight line as "y = mx + b" and "y = mx + c," respectively.
According to the given statements;
The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane. Calculating the slope of a line is similar to finding the slope between two different points.
To know more about Slope, visit;
https://brainly.com/question/3605446
#SPJ9
Please help me this is urgent I will give all my points!
Answer:
See below
Step-by-step explanation:
Area of rectangle - area of semicircle =
25 x17 - 1/2 pi (3.5)^2 = 405.8 mm^2 to the nearest tenth ...
Simon wanted to find the equation of a line that passes through (–6, 5) and is perpendicular to the graph of 3x + 2y = –11. His work is shown below.
1. 3x + 2y = –11 written in slope-intercept form is y = x , so the slope is .
2. The slope of the perpendicular line is .
3. Substitute the point and the new slope into point-slope form to get y – 5 = (x – (–6)).
4. Simplifying, the line is y – 5 = (x + 6).
Is Simon’s work correct?
No, the slope of the line 3x + 2y = –11 is not .
No, the slope of the line perpendicular to the line 3x + 2y = –11 should be .
No, he did not substitute the point and the slope into point-slope form correctly.
Yes, the work is correct.
The answer would be: B. No, the slope of the line perpendicular to the line 3x + 2y = –11 should be 2/3.
What if the Slope of Perpendicular Lines?The equation in slope-intercept form of a line is, y = mx + b, where we have the slope value as m. If two lines are perpendicular, the value of their slope (m) will be negative reciprocals to each other.
Rewriting the equation, 3x + 2y = -11 in slope-intercept form, we would have:
2y = -3x - 11
y = -3/2x - 11/2
The slope (m) is, -3/2. The negative reciprocal is, 2/3.
Therefore, the slope of the line that is perpendicular to the given line would be: 2/3.
Thus, the answer would be: B. No, the slope of the line perpendicular to the line 3x + 2y = –11 should be 2/3.
Learn more about the slope of perpendicular lines on:
https://brainly.com/question/1362601
#SPJ1
Answer:
b. No, the slope of the line perpendicular to the line 3x+ 2y = –11 should be .
Step-by-step explanation:
its right on edge
Find a possible value for y when x is -4 in the inequality below y<-2x+3
Answer: y<11
Step-by-step explanation:
y<-2x+3
y<-2(-4)+3
y<-(-8)+3
y<8+3
y<11
Write each number as a percent.
1/3
Rather than being expressed as a fraction, a percentage is a piece of a whole expressed as a number between 0 and 100.
The number 1/3 as a percentage is 33.33 %.
What is a percentage?
A percentage in mathematics is a figure or ratio that is stated as a fraction of 100. The percent sign, %, is frequently used to indicate it. There is no unit of measurement for a percentage. It is a dimensionless number (pure number).
Rather than being expressed as a fraction, a percentage is a piece of a whole expressed as a number between 0 and 100. Nothing is zero percent; everything is 100 percent; half of something is 50 percent; and nothing is zero percent. You divide the part of the whole by the whole and multiply the result by 100 to get the percentage.
Let the number be 1/3 then
1/3 = 0.3333
To find percentage multiply it by 100, we get
So, 0.3333 × 100 = 33.33 %
Therefore, the number 1/3 as a percentage is 33.33 %.
To learn more about percentage, refer to:
https://brainly.com/question/24877689
#SPJ4
Helpppppppppppppp meeeeeeee will give brainliest
Answer:90
Step-by-step explanation:
the angle is perpendicular
The cross-section of a lean-to shelter is in the shape of a triangle. The base of the
triangle is 6 feet more than twice its height. If the area of the triangle is 88 square feet,determine the length of the base and the height of the triangle in feet
Answer:
Step-by-step explanation:
Givens
Let the height = x
Let the base = 2*x +6
Let the area = 88 square feet.
Formula
A = Base * height / 2
Solution
88 = (2x + 6)*x/2 Multiply both sides by 2
88*2 = (2x+6)*2*x/2 Combine
176 = (2x + 6)*x Remove the brackets
176 = 2x^2 + 6x Subtract 176 from both sides
0 = 2x^2 + 6x - 176 This factors without the quadratic
0 = (2) (x^2 + 3x - 88)
0 = 2 (x +11)(x - 8)
Note: x + 11 has no meaning. Measurements of this type cannot be minus. What is - 11 feet.
x - 8 =0
x = 8
Answer
height = 8 feet
base = 2*8 + 6
base = 22
Choose all the true statements.
A. √√-2= √2
B. √-2=√√2i
C. √-8=2i√/2
D. √√-8=-2√2
E. √-16=4i
F. √-16=-4
Answer:
B,E,A
Step-by-step explanation:
Draw a line representing the rise and representing the run of the line. State the slope of the line in simplest form.
Answer:
See below
Step-by-step explanation:
See graph below
just an addition to the great reply above by jsimpson11000
Check the picture below.
Write the equation of the line in slope-intercept form.
4x=y-11
The equation of the line in slope-intercept form is y = 4x + 11 .
The equation of a line in slope-intercept form can be written as follows,
y = mx + c equation 1
m in the above equation represents slope of the line and c represents the intercept.
The given equation is 4x = y - 11 .
To get the equation of the line in slope-intercept form we need to convert the given equation in the format of equation of a straight line i.e., equation1. So, now we will rearrange the given equation as
4x = y - 11
On adding 11 on both sides in above equation, we will get
y = 4x + 11 equation 2
On equating equation 1 and equation 2, we will get
Slope of the line = m = 4
Intercept = c = 11
The equation of the line in slope-intercept form is y = 4x + 11 .
To know more about Slope Intercept form refer to the link:
https://brainly.com/question/19440459
#SPJ4
Back in 1997, Sally paid $11,448 for a new automobile. This amount included
the 6% sales tax. What was the price of the automobile without the tax?
12 + 3[18 - 5(16 - 13)]
Answer:
algebra = 21
Step-by-step explanation:
the answer is 21
branbliest, please
Compare the two numbers. Use > or < .
-√38, 6
Square root is a factor that, when multiplied by itself, equals the original value.
The values of -√38 = -6.16 then -√38 < 6.
What is a square root?In mathematics, a square root is a factor that, when multiplied by itself, equals the original value. Any time the idea of an object's square is mentioned, square roots can be considered more widely. These include square matrices and function spaces, among other mathematical structures.
Even though it is only one of the two square roots of a positive number, the term "square root" is occasionally used to describe the major square root of a positive number.
Let the values of -√38 = -6.16 then -√38 < 6
To learn more about square roots, refer to:
brainly.com/question/428672
#SPJ4
simplify 9w-4y-8w+1+y-12-2w
The simplified form of the expression: 9w – 4y – 8w + 1 + y -12 – 2w is -1w – 3y – 11.
Given,
The expression: : 9w – 4y – 8w + 1 + y -12 – 2w
We have to simplify the expression.
A mathematical expression can be simplified by replacing it with an equivalent one that is simpler (often shorter), for example. Algebraic expressions are simplified in computer algebra. Logic optimization involves the simplification of Boolean expressions.
Now simplify:
9w – 4y – 8w + 1 + y – 12 – 2w
= -1w – 4y + 1 + y – 12
= -1w – 3y + 1 – 12
= -1w – 3y – 11
So, the simplified form of the expression: 9w – 4y – 8w + 1 + y -12 – 2w is -1w – 3y – 11.
Learn more about simplification here:
https://brainly.com/question/20423729
#SPJ1
Which of the following graphs shows a system of equations with the same end behavior for both functions?
The graph with two functions with the same end behavior is the bottom one.
Which graph shows a system of equations with the same end behavior for both functions?The end behavior tell us how the function behaves as x tends to positive and negative infinity.
Now, let's look at the bottom graph on the given image.
You can see that the red graph goes up on the left side, and down on the right side.
And you also can see the same thing for the line, the blue graph, goes up on the left side, and down on the right side.
So there we can see two graphed equations with the same end behavior, thus, that is the correct option.
If you want to learn more about end behavior:
https://brainly.com/question/1365136
#SPJ1
A class of 25 students took a science test. 10 students had an average (arithmetic mean)
score of 80. The other students had an average score of 60. What is the average score of the
whole class?
The required average score of the class is 68.
Given that,
A class of 25 students took a science test. 10 students had an average (arithmetic mean) score of 80.
The other students had an average score of 60, which is the average score of the whole class is to be detrmined.
The average of the values is the ratio of the total sum of values to the number of values.
Here,
The average of 10 students is 80,
The average of the remaining students is 60 i.e. = 25 - 10 = 15
Now an average of the class,
Average = 80 * 10 + 15 * 60 / 25
= 1700 / 25
= 68
Thus, the required average score of the class is 68.
Learn more about average here:
brainly.com/question/24057012
#SPJ1
Drag each equation to the correct location on the table.
Solve the equations for the given variable. Then place the equations in the table under the correct solution.
x = 3
x + 3
= 9 -6 + z = -9 2-5 = -2 -² + x = ²²
-14x = -42
Equations x - 5 = -2, -3/5 + x = 12/5, -14x = -42, x/4 = 6/8 will be placed in the x =3 column and equations x/3 = 9, -6 + x = -9 will be placed in the x 73 column.
Here, we are given 6 equations, let us solve each one-
1. x/3 = 9
x= 9 3
x= 27
=x3
2.-6 + x = -9
x= -9 + 6
x
x= -3
X+ 3
3.
3. x - 5 = -2 x= -2 + 5
x=3 4.-3/5 + x = 12/5
x= 12/5 + 3/5
x= 15/5
= x= 3
5. -14x = -42
x= -42/-14
x = 42/14
= x= 3
6. x/4 = 6/8
X/4 = 3/4
x = 12/4
x= 3
Thus, equations x - 5 = -2, -3/5 + x = 12/5, -14x = -42, x/4 = 6/8 will be placed in the x =3 column and equations x/3 = 9, -6 + x = -9 will be placed in the x 73 column.
Learn more about linear equations here-https://brainly.com/question/2030026
#SPJ9
PRACTICING SKILLS & CONCEPTS
1. Complete the square box problem.
.6
2,
According to the question, the first part has square box with two diagonal lines and two values. In a square, all the sides are equal as well as opposite diagonal values are equal.
Therefore, from the figure ABCD is a square in which AC and BD is a diagonal. So the remaining empty boxes will have (-2,6).
In the second part, using probability the arrangement of the alphabets can be done. As per question, total three alphabets are there that is A, B,D. The three alphabets can be arranged as:
Probability = 3! = 6 ways
Hence, the arrangement of alphabets can be done in 6 ways.
What is probability?
Probability defines the occurrence of the events or the outcomes of the occurred events. It is the ratio of favored outcomes to total number of occurred outcomes.
To learn more about probability from the given link:
https://brainly.com/question/24756209
#SPJ1
Translate each rule into a formula.
The Average of 4 numbers a, b, c, d is equal to the sum of the numbers divided by 4.
The average of 4 numbers a, b, c, d is equal to the sum of the numbers divided by 4 is (a + b + c + d) / 4
How to illustrate the information?From the information, the average of 4 numbers a, b, c, d is equal to the sum of the numbers divided by 4.
It should be noted that this can be illustrated as:
(a + b + c + d) / 4
It should be noted that average simply means the addition of the numbers and then dividing them.
Learn more about average on:
brainly.com/question/26215194
#SPJ1
what is 8 to the 6 power?
(8⁶) who ever answers first gets brainiest
Answer:
262144
Step-by-step explanation:
8*8*8*8*8*8
64*8*8*8*8*8
512*8*8*8*8
4096*8*8*8
32,786*8
262144
Each Graph shows a relation. The first and second numbers of each ordered pair in the relation are members of the set of real numbers. In each case, find the domain and range of the relation and determine whether the relation is a function.
Please put it in a way it will enter the portal.
And please tell me which answer is for which.
The domain of the function will be - 2 ≤ x < 0. And the range of the function will be 0 ≤ y < 1. Then the relationship between x and y will be y = √(2² - x²).
What are domain and range?The domain means all the possible values of x and the range means all the possible values of y.
A relation is shown in each graph. Every ordered pair in the relationship has a first and second number that are both real numbers.
From the figure, the domain of the function will be - 2 ≤ x < 0. And the range of the function will be 0 ≤ y < 1.
The function is a part of the circle, then the relationship between x and y will be as,
y = √(2² - x²)
More about the domain and range link is given below.
https://brainly.com/question/12208715
#SPJ1
Answer:
Step-by-step explanation:
Find the square of 4+i
Answer:
1i = 1
4 + i = 4 + 1 = 5
Step-by-step explanation:
hope it's helpful
I need help asap and explain if you can if not it’s okay
The tables 2, 3 and 4 represent linear equations. (Correct choice: D)
Which tables do represent linear functions?
Algebraically speaking, linear functions are represented by a expression of the form y = m · x + b, where m is the slope of the function and b is the y-intercept of the line. Slope can be interpretated in accordance with the secant line formula:
m = Δy / Δ x
Where:
Δx - Change in independent variable.Δy - Change in dependent variable.In other words, a table represents a linear function if for all difference between two consecutive values in x means the same change for two corresponding values in f(x).
After a quick inspection, we find that tables 2, 3 and 4 represent linear as they show the following features:
Table 2: Δx = 1, Δy = 3, Table 3: Δx = 1, Δy = 4, Table 4: Δx = 1, Δy = 2
To learn more on linear equations: https://brainly.com/question/13738061
#SPJ1
please help. two other ppl have answered with wrong answers pls only reply if you know it !!!!!!!!!!!!! high points and brainily for the people who know it fr
Answer:
-12
i hope this helps;/
Answer:
The answer is -12.
Step-by-step explanation:
Basically when it says, "when h = -1 ", we need to substitute t for -1.
So, here's what the equation would look like now,
h(-1) = (-1 + 7) (-1 - 1)
= (6)(-2)
= -12
So, our answer is -12.
Hope this helps!
Karen stops at starbucks every weekday (M-F). She is very excited for the fall season and mobile orders a venti pumpkin spice latte every time she visits and leaves a one dollar tip. At the end of the week, she spent a total of $39.15. How much does one latte cost?
Based on the total amount that Karen spent in one week at the Starbucks, the cost of one latte was $6.83
What was the cost of one latte?Karen left a tip of a dollar every day she bought a Latte so this comes to:
= 1 x 5 days
= $5
The cost of a single latte is therefore:
= (Total amount spent - Total tips) / Number of days
= (39.15 - 5) / 5
= 34.15 / 5
= $6.83
In conclusion, a single latte at the Starbucks to Karen for the weekdays was $6.83.
Find out more on solving for cost at https://brainly.com/question/10556151
#SPJ1
A company's stock began the day at $27.26 per share. That price drops by $1.02 each hour.
a. What is the price per share after 4 hours?
