Question

Caitlin had $402 in her bank account. She withdrew $15 each week to pay for swimming lesson. She now has $237. Write an equation that can be used to find the number of swimming lessons that she paid for? How many swimming lessons did she pay for? At the time she had $237, the cost of a lesson rose to $19. How many lessons can she pay for with her remaining $237?

Answer 1

402-15x= 237

subtract 402 from both sides

15x = -165

-165
--------
15x

11 swimming lesson

19x =237

divide 19 from each side


237
-----
19

12.4....

12 lessons

Answer 2

402 -237=165
237 divided by 19=12.47