Ask question

Ask question

All categories

3 years ago

14

With the 20% off coupon, Alexis received a discount of $15 on her shoes. What was the regular price of her shoes before the 20%

off coupon was applied? Justify your answer using equations, models, and/or words to explain your mathematical reasoning.
Answer:

2 answers:

77julia77 [94]3 years ago

4 0

Let the reg. price be r.

Then 0.20r = $15, and r = $75.

forsale [732]3 years ago

3 0

The price is r.

Then 0.20r = $15, and r = $75.

You might be interested in

In remodeling a kitchen, a builder decides to place a splash-guard behind the sink consisting of eight 6-inch-square ceramic til

oksano4ka [1.4K]

Answer:

(a) 0.4242

(b) 0.0707

Step-by-step explanation:

The total number of ways of selecting 8 herbs from 12 is

$\binom{12}{8}=495$

(a) If 2 herbs are selected, then there are 8 - 2 = 6 herbs to be selected from 12 - 8 = 10. The number of ways of the selection is then

$\binom{10}{6}= 210$

Note that this is the number of ways that both are included. We would have multiplied by 2! if any of them were to be included.

The probability = $\dfrac{210}{495}=0.4242$

(b) If 5 herbs are selected, then there are 8 - 5 = 3 herbs to be selected from 12 - 5 = 7. The number of ways of the selection is then

$\binom{7}{3}= 35$

This is the number of ways that both are included. We would have multiplied by 5! if any of them were to be included. In that case, our probability will exceed 1; this implies that certainly, at least, one of them is included.

The probability = $\dfrac{35}{495}=0.0707$

6 0

2 years ago

What is the smallest prime number that can be written as the sum of three different prime

snow_tiger [21]

Prime numbers 2,3,5,7,11,13,17,19,23
so 2+3+5=10 no
3+5+7=15 no
3+5+11=19 Yes this is your answer

4 0

3 years ago

Plz, Help I'll give brainlist to whoever answers all questions!

Tatiana [17]

Answer:

Step-by-step explanation:

1. Area => 7.5 x 2 = 15 m² (Choice B)

2. Area => 5 x 11 = 55 in² (Choice B)

3. Area = (12 x 18) * 0.5 = 108 cm² (Choice A)

4. Triangular Pyramid (Choice D)

6. Area of Rectangle => 12 x 9 = 108

Area of Triangle => 7x6 = 42

Sum of Area => 150

7. Surface Area => (4x4)x6 = 96 in² (Choice D)

8. Volume = 3x15x14 = 630 in³ (Choice D)

7 0

2 years ago

Read 2 more answers

Helppppp !!!!!! <br><br>8^6 ÷ 8^7<br><br>A. 8^0<br>B. 8^1 <br>C. 8^5<br>D. 8^-1<br>E. 8^10

MArishka [77]

$8^6 ÷ 8^7$ = $8^{6-7}$ = $8^{-1}$

<h3>CMIIW</h3>

3 0

2 years ago

Read 2 more answers

Find f(x)=x^2-x^3,find f(-10)

sergij07 [2.7K]

Answer:

f(-10) = 1,100

Step-by-step explanation:

f(-10) = (-10)^2 - (-10)^3

= 100 - (-1000)

= 1,100

3 0

3 years ago