SOLUTION: gus is saving money to buy an xbox 360 he earns $15 each week for allowance and has already saved $90 towards this purchase

SOLUTION: gus is saving money to buy an xbox 360 he earns $15 each week for allowance and has already saved $90 towards this purchase

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Question 1019886: gus is saving money to buy an xbox 360 he earns $15 each week for allowance and has already saved $90 towards this purchase
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
Set w = no of weeks
90 + 15w = 360
add -90 to each side
15w = 360-90
15w = 270
divide each side by 15
w = 18 weeks
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