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Mashutka [201]
3 years ago
15

Maria needs to buy shoes for $50, jeans for $40, and a shirt for $20. She has a coupon that gives her a discount of x percent on

shoes. She has a second coupon that gives her a discount of y percent on jeans. The third coupon gives her a discount of z percent on her total purchase. She cannot combine the coupon for the total purchase with the other two coupons. These expressions give both possibilities for the total cost of Maria's purchase after the coupons are applied, the variables represent the percentages as decimals.
Mathematics
2 answers:
Colt1911 [192]3 years ago
8 0
(50-(x*50))+(40-(y*40))+20= discounted with 2 coupons

110-(z*110)= the price with the total coupon. 

I believe these are the correct answers

damaskus [11]3 years ago
8 0

A. Which part of the expression represents the price of the shoes after a coupon was applied directly to them?

(1-x)

B. Which part of the expression represents the price of the shoes, jeans, and shirt before the total discount is applied?

(50+40+20)

C. Which part of the expression represents the percent that she will pay for the jeans if he uses the jeans coupon?

(1-y)

Please let me know if any of these answers were wrong, Thanks!

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3 years ago
Determine the x- and y-intercepts of the graph ofx−4y=8Then plot the intercepts to graph the equation.
Over [174]

The x-intercept is the point where the graph cuts the x-axis, and the y-intercept is the point where the graph cuts the y-axis.

The x-axis is the line y = 0 and the y-axis is the line x = 0. To find the intercept between each axis and our graph, we just need to evaluate our function at x = 0 and y = 0.

Calculating the x-intercept, we have

\begin{gathered} x-4\cdot0=8 \\ x=8 \end{gathered}

The x-intercept is (8, 0).

Calculating the y-intercept, we have

\begin{gathered} 0-4y=8 \\ y=-\frac{8}{4} \\ y=-2 \end{gathered}

The y-intercept is (0, -2).

8 0
10 months ago
Solve the system of equations by substitution <br><br> y = 2x + 1 and 3x + y = 16
Luden [163]

Answer:  y=7,x=3

Steps:

y = 2x + 1

3x + y = 16

Substitute y = 2x + 1

3x + 2x + 1 = 16

Simplify

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Isolate x for 5x + 1 = 16: x = 3

For y = 2x + 1

Substitute x = 3

y = 2 · 3 + 1

Simplify

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The solutions to the system of equations are:

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Hope This Helps!

6 0
2 years ago
I Need Help Like Now!!
kogti [31]

Answer:

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We require 2 equations with the repeating decimal after the decimal point in both equations.

The bar above 136 indicates that 136 is being repeated

let x = 0.136136...... → (1) Multiply both sides by 1000

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Subtract (1) from (2) to eliminate the decimal part

999x = 136 ( divide both sides by 999 )

x = \frac{136}{999}

5 0
3 years ago
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