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28.07.2019 •
Mathematics
In a 5/6 pound mixture of sand and gravel, 1/4 pound is gravel. how much gravel is there in a 1-pound mixture?
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Ответ:
xlbs of gravel is in 1lbs of mixture
1/4:5/6=x:1, 1/4*1=5/6*x
5/6*x=1/4, x=(1/4)/(5/6)
x=3/10
In 1 pound of mixture of sand and gravel, 3/10 pound is gravel.
Ответ: