Question

At a local fitness center, members pay a $10 membership fee and $4 for each aerobics class. Nonmembers pay $6 for each aerobics class. For what number of aerobics classes will the cost for members and nonmembers be the same?

Answer 1

5 classes

Explanation:

Local fitness center: $10+$4x

Nonmembers: $6x

$10+$4x=$6x

10-2x=0

-2x=-10

x=5

(another way)

10+4(1)=14

6(1)=6

10+4(2)=18

6(2)=12

10+4(3)=24

6(3)=18

10+4(4)=26

6(4)=24

10+4(5)=30

6(5)=30