Question

Please Help!!!

Gina wants to take dance classes. She compares two dance studios to determine which has the best deal for her. Dance World charges a rate for each class. Toe Tappers charges a rate for each class plus a one-time registration fee. The system of equations shown models the total costs for taking x classes at each.
Dance World: y = 15x
Toe Tappers: y = 25 + 12.5x

How many classes would Gina need to take for the total cost to be the same at both dance studios?
A: 10
B: 15
C: 100
D: 150

Answer 1

A 10

Explanation:

• Set the equations equal to each other:

15x = 25 + 12.5x

• Solve for x

2.5x = 25

x= 10

Answer 2

The correct answer is A: 10

Explanation:

We know that for Dance World the equation is y=15x and for Toe Tapper it is y=25+12.5x

Make a chart with both dance companies and compare the solutions to each equation. Like the one below.

Dance World / Toe Tappers

A:10 $150 / $150

B:15 $225 / $212.5

C:100 $1500 / $1275

D:150 $2250 / $1900

In conclusion, A:10 is the correct answer as both dance companies cost the same for 10 classes.

Sorry if this is really late, this is for the people who have the same question and need an answer too.