Question

13) You have $80 and your sister has $160. You are saving

$7 per week and your sister is saving $5 per week. In
how many weeks you and your sister will have the same
amount of money? Write an equation and solve.

Answer 1

Answer: 30 weeks

Explanation:

let w = number of weeks

you have = 60 + 7w

she has = 120 + 5w

60+7w = 120 + 5w

7w-5w = 120-60

2w = 60

w = 30 weeks