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The ratio of a quarterback's completed passes to attempted passes is 5 to 8. If he attempted 16 passes, find how many passes he completed. Round to the nearest whole number if necessary.

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The ratio of a quarterback's completed passes to attempted passes is 5 to 8. If he attempted 16 passes, find how many passes he completed. Round to the nearest whole number if necessary.

Let

x -----> number of quarterback's completed passes

y -----> number of quarterback's attempted passes

so

x/y=5/8 -----> x=(5/8)*y -----> equation A

y=16 -----> equation B

substitute equation B in equation A

x=(5/8)*16

x=10

therefore

the answer is 10 completed passes

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