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    edro1's Avatar
    edro1 Posts: 1, Reputation: 1
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    #1

    Sep 20, 2010, 07:17 PM
    Problem solving : using charts
    Brian earns twice as much each week as a tutor than he does pumping gas. His total weekly wages are $150 more than his sister. She arns one quarter as much as Brian does as atotr. How much does Brian earn as a tutor?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Sep 21, 2010, 01:41 AM

    Let's say Brian gets X amount of money on tutoring.
    He uses X/2 on gas.
    This amount is $150 more than his sister's wages. Hence, his sister's wages can be written as $(X-150).
    What she earns, is 1/4 of Brian's earnings, hence, it can be written as X/4.

    Well, you have the sister's earnings expressed into two different ways... equate them!
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