Suppose you have $55 in your bank account. You start saving $10 each week. Your friend has $20 in her account and is saving $15 each week. When will you and your friend have the same amount of money in your accounts?

Question

Cierra Golden

Mathematics

1 July, 21:32

Suppose you have $55 in your bank account. You start saving $10 each week. Your friend has $20 in her account and is saving $15 each week. When will you and your friend have the same amount of money in your accounts?

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Answers (1)

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Roy · Answer 1

The equation is:

55 + 10 x = 20 + 15 x, where x is number of the weeks.

55 - 20 = 15 x - 5 x

35 = 5 x

x = 35 : 5

x = 7

Answer:

The same amount of money in both accounts will be after 7 weeks.