You have $60 and your sister has $120. you are saving $7 per week and your sister is saving $5 per week. how long will it take before you and your sister have the same amount of money and how much money will you each have?

Question

Mathematics

Zackary Jennings

22 September, 17:14

You have $60 and your sister has $120. you are saving $7 per week and your sister is saving $5 per week. how long will it take before you and your sister have the same amount of money and how much money will you each have?

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Answers (1)

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Justin Kennedy · Answer 1

x - number of weeks until the game is over.

60 + 7x = 120 + 5x ⇒ 7x - 5x = 120 - 60 ⇒ 2x = 60 ⇒ x = 30.

So, after 30 weeks, you and your sister have the same amount of money.

60 + 7·30 = 60 + 210 = 270 dollars, will you each have