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nordsb [41]
3 years ago
10

A proofreader can read 40 pages in one hour. How many pages can this proofreader read in 90 minutes?

Mathematics
2 answers:
ivanzaharov [21]3 years ago
8 0
One hour is equal to 60 minutes. That gives you a fraction of 40 pages/60 minutes.

You don't know how many pages they can read in 90 minutes, so you would do
x pages/90 minutes.

The equation you would set up is 40/60 = x/90.

After cross multiplying you get 60x = 3600. Divide both sides by 60 to isloate the x, and you end up with x = 60.

A proofreader who can read 40 pages in one hour (60 minutes) can reading 60 pages in 90 minutes.
tangare [24]3 years ago
3 0
40 pages = 60 minutes
20 pages = 30 minutes
60 pages = 90 minutes
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