The Equation of the graph in slope-intercept form is 3y = 1350 - 100x
Misty will travel 150 miles after 9 hours
It will take misty 12 hours to cover 50 miles
What is a linear equation?A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant.
Equation of line in slope-intercept form is y = mx + c
let y be the distance in miles and x be the time in hours.
from the graph when x = 0, y = 450
substituting into the equation,
450 = 0(m) + c
c = 450 which is the intercept
Also from the graph, taking the point (3, 350)
when x = 3, y = 350
350 = 3m + 450
3m = 350 - 450
3m = -100
m = -100/3
SO the equation of straight line becomes
y = -100x/3 + 450
multiply through by 3
3y = -100x + 1350
if misty travel 9 hours that is x = 9, then y =
3y = -100(9) + 1350
3y = 450
y = 450/3
y = 150 miles
If there are 5o miles remaining,
y = 50, x =
3(50) = -100x +1350
100x = 1350 -150
100x = 1200
x = 1200/100
x = 12 hours.
The Equation of the graph is 3y = 1350 - 100x
Misty will travelled 150 miles after 9 hours
It will take misty 12 hours to cover 50 miles
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graph the line that passes through the point (-1,-4) and whose slope is -2
Answer:
Step-by-step explanation:
this seems tough, but, remember the formulas , point slope and how to find M ( slope) and this gets much easier.
let's use the point-slope formula to get the slope-intercept formula
from my memory, which you can also memorize
y-y1=m(x-x1) (point-slope formula)
we are given the slope m = -2
and we're given a point P(x1,y1) as ( -1,-4)
plug this info into our plug and play formula :P
y-(-4) = (-2)(x-(-1)) : note all the careful attention to minus signs
y+4 = (-2)(x+1)
y+4 = -2x -2
y = -2x -2 -4
y =-2x-6 (slope-intercept formula y = mx +b)
y= -2x + (-6)
I'll use Desmos to quickly graph this for you, see attached graph
Simplity (34)-1
1/34
1/3-4
-34
33
Option-A is correct, when the The exponential term is (3⁴)⁻¹ which is in the division.
Given that,
The exponential term is (3⁴)⁻¹
We have to find the the exponential term which is correct from the option.
The multiplicative inverse of the base raised to a power with the opposite sign of the given power is a negative exponent. In plain English, we write the number's reciprocal and solve it just like positive exponents. For instance, (3/2)² can be used to represent (2/3)⁻². We are aware that an exponent indicates the degree of multiplication a number has undergone.
Take the term,
(3⁴)⁻¹
1/3⁴
Therefore, Option-A is correct, when the The exponential term is (3⁴)⁻¹ which is in the division.
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-0.6a^2b*(-10ab^2) PLEASE HELP!!!!!!!!
Answer: 6a^3b^3
Step-by-step explanation:
Answer:
6a³b³
Step-by-step explanation:
-0.6a^2b*(-10ab^2) =
= -0.6 × (-10) × a² × a × b × b²
= 6a³b³
How many Pieces of ribbon .6m long can be cut from 13.2m ribbon?
I think is is 22
because it is asking how many times can .6m go into 13.2m of ribbon? If you start with 20x.6 you will get 12. Then you add on another one and get 12.6. Finally add one more to get 13.2m ribbon which would make the answer 22. You can also divide 13.2m divided by .6m and get 22.
Hopefully this helped you guys. If you guys want more answers please give me those 5 Stars and Give me a thanks to show you appreciation.
Over all the Answer is 22
Have a great day (:
What is the equation of this graphed line
The equation of the graphed line is written as: y = 2x + 2.
How to Find the Equation of a Graphed Line?The equation of a graphed line can be determined by calculating the slope of the line, m = rise/run, and determining the y-intercept value, b, which is the point at which the line intersects the y-axis.
Using two points on the graphed line in the diagram attached below, (-4, -6) and (2, 6):
Slope (m) = change in y / change in x = (-6 - 6) /(-4 - 2)
Slope (m) = -12/-6
Slope (m) = 2
The line cuts the y-axis at y = 2. The y-intercept of the line, b = 2.
Wrote the equation of the graphed line by substituting m = 2 and b = 2 into y = mx + b:
y = 2x + 2.
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ASAP! exponent rules.
The answer to the Exponent is [tex]w^{64}[/tex]
What does the term Exponent means?
A quantity that represents the degree of power to which a particular number or expression is to be increased, commonly displayed as a raised symbol next to the number or word is termed as exponent.
Solution:
According to the rule of Exponent
[tex](a^{b} )^{c} = a^{b*c}[/tex]
Using the same rule;
[tex](w^{8})^{8} = w^{8*8}[/tex]
[tex]w^{64}[/tex]
So, the correct answer is w^64
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Mr.Customs is correcting the class’s math homework on customary units. Which of the following measurements is reasonable?
A.)a pencil is 12 feet long
B.)the back porch is 12 inches wide
C.)the 3rd hole in the golf course is is 123 miles long
D.)the distance from New York to California is 2,250 miles
The reasonable measurement is D.)the distance from New York to California is 2,250 miles
Measurement:
Measurement is the process of comparison of an unknown quantity with a known or standard quantity.
Given,
Mr. Customs is correcting the class’s math homework on customary units. Here we need to find which of the following measurements is reasonable.
By looking at the given options,
A) a pencil is 12 feet long - This one is wrong because the measuring unit of pencil is cm.
B) the back porch is 12 inches wide - For this one we have to use the feet or meter scale.
C) the 3rd hole in the golf course is is 123 miles long - Here this one we have to use either cm or mm.
Therefore, option (D) the distance from New York to California is 2,250 miles is a reasonable statement.
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What is 6,10,499,999 rounded to the nearest hundred thousand?
Answer:
6,10,500,000
Step-by-step explanation:
Answer:
610500000 is the answer! I hope this helps!
Giving 50 points!!
Question: Determine whether the dilation from figure K to K’ is an enlargement or a reduction
Answer:
enlargement
Step-by-step explanation:
observe from the figure [tex]OK=x<x+5=7=OK'[/tex]
since [tex]OK<OK'[/tex], then the dilation is an enlargement.
Answer:
Step-by-step explanation:
defsfvbrfdv
Solve each equation. Write each answer as a whole number or simplified fraction using the form a/b. a. 25=x15; x= b. 43=x7; x= c. 75=28x; x= d. 114=5x; x=
The solution for the equation are a. x = 5/3 or 2
b. x= 43/7 or 6
c. x =114/5 or 23
d. x =114/5 or 23
What is simplified fraction?
Simplified fraction are fraction in there lowest value or reduced form.
a. 25=x15
Divide both sides by 15
25/ 15 = 15x/15
X = 25/ 15 = 5/3
Therefore, the value of x is 5/3 or 2.
b. 43=x7
Divide both sides by 7
43/7 = 7x/7
x= 43/7 = 6.14
Therefore, the value of x is x= 43/7 or 6
c. 75=28x
Divide both sides by 28
75/28 =28x/28
x = 75/28 =2.67
Therefore, the value of x is x= 75/28 or 3
d. 114=5x
Divide both sides by 5
114/5 = 5x/5
x =114/5 =22.8
Therefore, the value of x is x =114/5 or 23
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at track practice, steve works out doing lunges on a path that is 110 yards long. if steve can cover 22 in with each lunge, how many lunges will it take to cover the path?
Answer:
It will take 5 lunges to cover the path.
Step-by-step explanation:
Path length = 110
1 lunge = 22 yards
110/22 = 5
5 lunges = 22x5 = 110 yards
The football team has a total of 28 jerseys. There are 10 medium-sized jerseys. What percent of the jerseys are medium-sized jerseys?
The percentage of jerseys that were medium-sized jerseys is 35.71%
What is Percentage?
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %
Given data ,
Total number of jerseys the football team has = 28 jerseys
Total number of jerseys that were medium sized = 10
So ,
Percentage of jerseys that were medium sized =
( Total number of jerseys that were medium sized / Total number of jerseys ) x 100
Percentage of jerseys that were medium sized = ( 10 / 28 ) x 100
= ( 5 / 14 ) x 100
= 7.14285 x 5
= 35.71 %
Therefore , the percentage of jerseys that were medium sized = 35.71%
Hence , the percentage of jerseys that were medium-sized jerseys is 35.71%
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What is the product?
2y 4y-12
y-3 2y+6
O
تان
10
4y
y-3
4y
y+3
The product of the given polynomials is 4y/(y + 3).
We are given two polynomials. A polynomial is a mathematical statement that is composed of the sum of powers in one or more variables multiplied by coefficients. The polynomials are in rational form. A rational number is created by dividing an integer by an integer. The first polynomial is 2y/(y - 3). The second polynomial is (4y - 12)/(2y + 6). We need to find the product of these two polynomials. Let the product be represented by the variable "P".
P = [2y/(y - 3)]×[(4y - 12)/(2y + 6)]
P = [2y/(y - 3)]×[4(y - 3)/2(y + 3)]
P = [2y]×[2/(y + 3)]
P = 4y/(y + 3)
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If x is a positive, even integer and 2x + 8 < 22, how many possible values of x are there?
There are 7 possible positive integers that satisfy the inequality.
InequalityIn Mathematics, the relationship between two values that are not equal is defined by inequalities. Inequality means not equal. Generally, if two values are not equal, we use “not equal symbol (≠)”. But to compare the values, whether it is less than or greater than, different inequalities are used.
We can find the positive values of x in the given inequality.
2x + 8 < 22
2x < 22 - 8
2x < 14
x < 7
The solution shows that x < 7
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- 4x + 7y = 3
x-intercept:
y-intercept:
Answer:
X intercept: (-3/4 , 0)
Y intercept: (0 , 3/7)
Step-by-step explanation: The x intercept is a coordinate whenever y is 0. The y intercept is a coordinate whenever x is 0. So to find the x intercept you put 0 in place of Y and you solve for x. So you get x=-3/4.
You do the same thing to find Y, but you put 0 instead of x and you get y=3/7.
Find the dimensions of a rectangle with area 1000 m2 whose perimeter is as small as possible.
Both the length and width of the rectangle are approximately 31.62 m each.
The Area of a rectangle is calculated by multiplying the length by the width.
A = L x W
We have given that area of rectangle is 1,000 m²
1000 = W× L => W = 1000/L ---(1)
The circumference of rectangle is twice the sum of the dimensions. That is,
P = 2L + 2(1000/L)
Now, it is provided that perimeter is minimum so, we differentiate perimeter with respect to L then put first order derivative equal to zero.
dP/dL = 2 + 2000(-1/L²) = 0
=> 2-2000/L²=0
=>2000/L²=2
=> L²=2000/2
=> L²= 1000
=> L= 31.622
putting value of L in (1) we get , W= 31.622m
Therefore the length and width of the rectangle are both approximately 31.622m .
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80 POINTS!!
does anybody know how to answer this?:
Answer:
Your answer would be B!!
Step-by-step explanation:
If you need me to show how to work it let me know!!
What is the equation of the line that passes through the point (-2,14) and is perpendicular to the line with the following equation? y= -2/5 x-1
keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above
[tex]y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{2}{5}}x-1\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{\cfrac{-2}{5}} ~\hfill \stackrel{reciprocal}{\cfrac{5}{-2}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{5}{-2}\implies \cfrac{5}{2}}}[/tex]
so we're really looking for the equation of a line whose slope is 5/2 and it passes through (-2 , 14)
[tex](\stackrel{x_1}{-2}~,~\stackrel{y_1}{14})\hspace{10em} \stackrel{slope}{m} ~=~ \cfrac{5}{2} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{14}=\stackrel{m}{ \cfrac{5}{2}}(x-\stackrel{x_1}{(-2)}) \implies y -14= \cfrac{5}{2} (x +2) \\\\\\ y-14=\cfrac{5}{2}x+5\implies {\Large \begin{array}{llll} y=\cfrac{5}{2}x+19 \end{array}}[/tex]
A student estimated the sum 7. 95 + 8. 11 + 78. 5 + 8. 05 + 79. 4 + 0. 815 as: all the numbers begin with a 7 or 8, so use cluster estimation. 8 + 8 + 80 + 8 + 80 + 0. 8 = 184. 8 explain why this reasoning is not accurate.
Reasoning is not accurate because we cannot take 79.4 and 0.815 has cluster estimates of 8.
Given:
A student estimated the sum 7.95 + 8.11 + 78.5 + 8.05 + 79.4 + 0.815 as: All the numbers begin with a 7 or 8, so use cluster estimation. 8 + 8 + 80 + 8 + 80 + 0.8 = 184.8
7.95 + 8.11 + 78.5 + 8.05 + 79.4 + 0.815
8 + 8 + 80 + 8 + 80+ 0.8 = 184.8
Cluster estimation is used to estimate sums and products when the numbers being added or multiplied cluster near/ close in value to a single number.
Here 79.4 does not cluster around 8
And 0.815 does not cluster around 8
Therefore reasoning is not accurate because we cannot take 79.4 and 0.815 has cluster estimates of 8.
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50 Points!!! Explain the difference between consecutive interior angles, corresponding interior angles, and co-interior angles.
Answer:
Co-interior angles or Consecutive interior angles are the two angles that are on the same side of the transversal. Co-interior angles are the interior angles and it sums up to 180 degrees. It means that the sum of two interior angles, which are on the same side of transversal is supplementary. Co-interior angles resemble like in “C” shape and both the angles are not equal to each other. The co-interior angle is also known as the consecutive interior angles or the same side interior angles.Co-interior Angles
Co-interior Angle Theorem and Proof
Statement:
If the transversal intersects the two parallel lines, each pair of co-interior angles sums up to 180 degrees (supplementary angles).
Proof:
Co-interior Angles Proof
Let us consider the image given above:
In the figure, angles 3 and 5 are the co interior angles and angles 4 and 6 are the co-interior angles.
To prove: ∠3 and ∠5 are supplementary and ∠4 and ∠6 are supplementary.
Given that, a and b are parallel to each other and t is the transversal.
By the definition of linear pair,
∠1 and ∠3 form the linear pair.
Similarly, ∠2 and ∠4 form the linear pair.
By using the supplement postulate,
∠1 and ∠3 are supplementary
(i.e.) ∠1 + ∠3 = 180
Similarly,
∠2 and ∠4 are supplementary
(i.e.) ∠2 + ∠4 = 180
By using the corresponding angles theorem, we can write
∠1 ≅∠5 and ∠2 ≅ ∠6
Thus, by using the substitution property, we can say,
∠3 and ∠5 are supplementary and ∠4 and ∠6 are supplementary.
Hence, the co-interior angle theorem (consecutive interior angle) is proved.
The converse of this theorem is “if a transversal intersects two lines, such that the pair of co-interior angles are supplementary, then the two lines are parallel”.
[tex]\sqrt{3^2+27}+2^3+\sqrt[3]{64}[/tex]
[tex]\boldsymbol{\sf{\sqrt{3^2+27}+2^3+\sqrt[3]{64} }}[/tex]
Calculate 3 to the power of 2.
[tex]\boldsymbol{\sf{\sqrt{9+27}+2^3+\sqrt[3]{64} }}[/tex]
Add 9 and 27.
[tex]\boldsymbol{\sf{\sqrt{36}+2^3+\sqrt[3]{64} }}[/tex]
Find the square root of 36.
[tex]\boldsymbol{\sf{6+2^3+\sqrt[3]{64} }}[/tex]
Calculate 2 to the power of 3.
[tex]\boldsymbol{\sf{6+8+\sqrt[3]{64} }}[/tex]
Add 6 and 8.
[tex]\boldsymbol{\sf{14+\sqrt[3]{64} }}[/tex]
Calculate [tex]\sqrt[3]{64}[/tex]
[tex]\boldsymbol{\sf{14+4=18}}[/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{ 18}[/tex]
Step by step explanation:[tex] \: \: \: \: \: \: \: \bold{\sqrt{9 + 27} + 2 {}^{3} + \sqrt[3]{64} }[/tex]
To solve this problem, the first thing we have to do is simplify 3² to 9, since it multiplies 2 times 3 to give us 9.
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \bold{ \sqrt{36} + {2}^{3} + \sqrt[3]{64} }[/tex]
Then we must add 9 + 27 to give us a result of 36.
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{6 + {2}^{3} + \sqrt[3]{64} }[/tex]
Now we must multiply again but this time we are going to multiply 2 times 6 since 6 × 6 is equal to 36.
[tex]\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{6 + 8 \: + \sqrt[3]{64} }[/tex]
Now we must again multiply 3 times 2 to give us 8.
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{6 + 8 + 4}[/tex]
Then we must add 6 + 8 + 4.
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{14 + 4}[/tex]
Before finishing we know that we got 14, now we must add 14 + 4 to give us a result of 18.
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \bold{18}[/tex]
Rpt: The result is 18.
If f(x) =4x^6+ x^4+4,then what is the remainder when f(x) is divided by x-1
The remainder for the given polynomial is 9
A polynomial is an expression made up of variables, constants, and exponents that are combined using mathematical operations like addition, subtraction, multiplication, and division (No division operation by a variable). It is a function that only uses non-negative integer powers or positive integer exponents of a variable
Given f(x) = 4x^6+ x^4+4
Now f(x-1) = 0
X= 1
Substitute the x value in the function
f(x) = 4x^6+ x^4+4
f(x) = 4(1)^6+ (1)^4+4
f(x) = 4+ 1+ 4
f(x) = 9
Therefore the remainder for the given polynomial is 9
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Find all real numbers $x$ such that $x^2 < 4$. Give your answer in interval notation.
All the real numbers x which satisfy the given inequality x²<4 , in interval form is (-2, 2).
As given in the question,
Given inequality is given by :
x²< 4
Simplify the given inequality x² < 4 to get all the real numbers x we have,
x² < 4
⇒ x² - 4 < 0
⇒ x² - 2² < 0
Apply a² - b² = ( a - b ) ( a + b ) we get,
⇒ ( x - 2 ) ( x + 2 ) < 0
⇒ x ∈ ( -2 , 2 ) as less than symbol represent open interval.
Therefore, all the real numbers x which satisfy the given inequality x²<4 , in interval form is (-2, 2).
The complete question is :
Find all real numbers x such that x^2 < 4. Give your answer in interval notation.
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Is the absolute value of -3 less than, greater than, or equal to -7
The statements are true "3 is less than 7, and the absolute value of 3 is less than the absolute value of 7".
What is absolute value?Absolute value is defined as the magnitude or size of a number, no negatives are allowed.
The distance a number is from 0 on the number line is known as the absolute value of the number.
For example, |5| is 5 because it is 5 units away from 0. Also, |-5| is also 5 because -5 is 5 units from 0.
The absolute value of a number is how distant it is from zero. The standard procedure to represent absolute value is to use a number line to estimate the exact distance the number is from zero.
As per the option, 3 is less than 7 is true.
The absolute value of 3 is less than the absolute value of 7 is true.
Thus, the statements are true "3 is less than 7, and the absolute value of 3 is less than the absolute value of 7".
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The question seems to be incomplete the correct question would be
Which statements about 3 and 7 are true? Choose ALL the correct answers.
3 is less than 7.
3 is greater than 7.
The absolute value of 3 is less than the absolute value of 7.
The absolute value of 3 is equal to the absolute value of 7.
The absolute value of 3 is greater than the absolute value of 7.
NEED THIS ASAP!! A computer is used to pick four letters, one after the other, from {P, Q}. Each letter can be picked more than once and has the same chance of being picked.
The possible outcomes for this experiment are shown in the table.
P P P P P P P Q P P Q P P Q P P
Q P P P P P Q Q Q Q P P P Q Q P
Q P P Q Q P Q P P Q P Q Q Q Q P
Q Q P Q Q P Q Q P Q Q Q Q Q Q Q
Drag and drop to match the value to the probability statement.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
P(all P or all Q)
The probability that the same letter is obtained in all trials is given as follows:
P(all P or all Q) = 1/8.
How to obtain a probability?The probability of an event in an experiment is obtained as the number of desired outcomes of the experiment divided by the number of total outcomes of the experiment.
In this problem, the trials are given as follows:
P P P P.P P P Q.P P Q P.P Q P P.Q P P P.P P Q Q.Q Q P P.P Q Q P.Q P P Q.Q P Q P.P Q P Q.Q Q Q P.Q Q P Q.Q P Q Q.P Q Q Q.Q Q Q Q.Only two out of the 16 trials resulted in the same four letters being chosen, hence the probability is:
P(all P or all Q) = 2/16 = 1/8.
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i need explanation on similtaneous equations!
can anyone help me please!
Answer:
Step-by-step explanation:
Simultaneous equations are two or more algebraic equations that share variables e.g. x and y . They are called simultaneous equations because the equations are solved at the same time. Each of these equations on their own could have infinite possible solutions.
The closed right circular cylindrical can of the smallest surface area whose volume is
250 π cm3 has a radius of _____ cm and a height of _____ cm
The closed right circular cylindrical can of the smallest surface area whose volume is 250π cm³ has a radius of 5cm and a height of 10 cm.
Let r and h be the radius and height of the cylinder respectively.
Volume, V= πr²h
Given,
Volume = 250 π
Now, we can solve by:
⇒ 250 π = πr²h
⇒ r²h=250
⇒ h= 250/r²
We know that,
Surface area, A = 2πr²+2πrh
⇒ A = 2πr²+ 2πr(250/r²)
⇒ A = 2πr²+ (500π/r)
Differentiating the above equation,
dA / dr = 4πr+500π(-1/r²)
For A to be maximum or minimum, dA/dr = 0
⇒ 4πr-500(π/r²) = 0
⇒ 4πr - 500π / r² = 0
⇒ 4πr³ -500π/ r² = 0
⇒ π (4r³ -500) = 0
⇒ 4r³ - 500 = 0
⇒ r = ∛125
⇒ r = 5
Putting value of r = 5, we get,
h = 250/(5)² = 10
By second derivative test,
d²A/dr² = 4π-500π(-2/r³)
At r= 5,
d²A/dr² = 4π+1000(π/r³) > 0 .
Therefore, It is a local minimum.
Ans: Radius = 5 and Height = 10
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Can anyone solve this for me?
Answer:
8°
Step-by-step explanation:
For the acute angles in a right triangle,
[tex]sin(90-\theta)=cos\theta[/tex]
Given expression is:
[tex]cos(7x)=sin(4x+2)\\sin(90-7x)=sin(4x+2)\\90-7x=4x+2\\88=11x\\x=8^o[/tex]
To check our answer, determine the measures of the other angles in a right triangle.
[tex]A1=90^o\\A2=8^o\\A3=90-8=82^o[/tex]
The smallest angle is 8°
At Target, shirts were on sale for $16 each. This price was 80% of their original price. What was the original price of the shirt?
Answer: 20 dollar because every 20% is 4$ therefore 100% is 20$
Help! Solve this for the points