SOLUTION: 14. Sarah spends 1/7 of her time on mathematics and 3/7 of her time on languages in school daily. If she spends ¾ h on mathematics, how many hours does she spend in a school per da

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Question 389576: 14. Sarah spends 1/7 of her time on mathematics and 3/7 of her time on languages in school daily. If she spends ¾ h on mathematics, how many hours does she spend in a school per day?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

I. Assigning the variable       

Let x represent the amount of hours spent in school/day

II.Writing as we Read***

   +%281%2F7%29x+=+3%2F4hr+     

III.Solving for x by multiplying both sides of eequation by 7 in this case

       x = 21/4hr OR 5 1/4 hr, the amount of hours spent in school/day

       

IV. CHECKING Our Answer***

 +%281%2F7%29%2821%2F4%29+=+3%2F4