jeniscool
jeniscool
02-02-2018
Mathematics
contestada
How would you do this??
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Americ
Americ
02-02-2018
x= total number of problems
This is a proportion problem. 80% is to 100% as 32 problems is to x problems.
80/100=32/x
Cross multiply
(80*x)=(100*32)
80x=3200
Divide both sides by 80
x=40
There were 40 questions on the test.
Hope this helps! :)
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