Question

John is saving money to buy a skateboard. He has $37 in his savings account and saves 14% of his dog-walking earnings each week. After 8 weeks, he has $75.50 in his savings account. How much money did John earn per week walking dogs? How much did John save per week? Round answer to the nearest hundredth (two decimal place

Answer 1

Explanation:

Let x be John's dog-walking earnings per week, then:

After 8 weeks, John has saved: 0.14x * 8 = 1.12x dollars

Adding this to his initial savings, we get:

37 + 1.12x = 75.50

Subtracting 37 from both sides, we get:

1.12x = 38.50

Dividing by 1.12, we get:

x ≈ 34.38

Therefore, John earned approximately $34.38 per week walking dogs.

To find how much John saved per week, we can simply divide his total savings over 8 weeks by 8:

(75.50 - 37)/8 ≈ $4.44

Therefore, John saved approximately $4.44 per week.