Problema Solution

you and your sister are saving money from your allowances. you have $25 and save $3 each week. your sister has $40 and saves $2 each week. after how many weeks do you and your sister have the same amount of money.

Answer provided by our tutors

let 'x' represents the number of weeks


25 + 3x = 40 + 2x


by solving we find:


x = 15 weeks


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after 15 weeks you and your sister will have the same amount of money.