Posted by **kevin** on Sunday, October 11, 2009 at 11:59am.

Brian O'Reilly earns twice as much each week as a tutor than he does pumping gas. His total weekly wages are $150 more than that of his younger sister. She earns one quarter as much as Brian does as a tutor. How much does Brian earn as a tutor?

- math -
**allan**, Sunday, October 11, 2009 at 12:37pm
i think its 37.50

- math -
**Reiny**, Sunday, October 11, 2009 at 1:58pm
let his wages from pumping gas be x

then his wages from tutoring is 2x

Brian's total wages = 3x

Sisters wages are 1/4 of Brian's tutor wages

= (1/4)(2x) = x/2

His wages from tutoring are 150 more than sister's wages

3x = x/2 + 150

6x = x + 300

5x = 300

x = 60

So he makes 2x or $120 as a tutor.

check: Brian's wages = 60 + 120 = 180

Sister's wages = (1/4) of 120 = 30

180 is 150 more than 30

- math -
**jesse**, Wednesday, June 29, 2011 at 12:50am
this problem is killing me

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