Jahla works at a book store. she makes a wage of $10 per hour and warns a 10% commission on her total sales. if she receives a paycheck of $500 and sold $3.500 worth of books , how many hours did she work?

First we know he received a commission of 10% on all worth he sold  given by 10% of 3500 =10%*35000   =10/100*3500=350

Then the total earnings are 500 thus money per hour is

total earned - commission    =500-350=150

And this money was 10% of hours worked so we now ask ourselves  if 10% was 150 what about 100%

10%=150

100%  × ? then we cross- multiply

(100%*150)/10%  =  1500

Step-by-step explanation:

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

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step-by-step explanation:

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