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March 28, 2017

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What is the equation to the word problem? Currently, you have $60 & your sister has $135. You decide to save $5 of your allowance each week,while your sister decides to spend her whole allowance plus $10 each week. How long will it be before you have as much as your sister?

  • algebra - ,

    U=60+5w
    S=135-15w

    set U=s

    60+5w=135-15w

    add 15w to each side, subtract 60
    20w=75
    divide by 20
    weeks=4 weeks

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