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How many copies of each type were made?

Business & Finance
Tutor: None Selected Time limit: 1 Day

Copy center charges .08 per page for machine-fed copies and .20 per page for hand-fed copies. If Logan's bill for 80 copies of his script is 13.00

Sep 3rd, 2014

Let x be the number of machine copies

then 80-x must have been hand- fed copies

The total cost would be .08x + .2 (80-x)

But we know the total cost = 13

.08x + .2 (80-x) =13

Multiplying both sides by 100 to get rid of decimals gives

 8x + 20 (80-x) =1300

8x + 1600 – 20x = 1300

-12x                    = -300

x= 300/12 = 25

There were 25 machine copies and 80-25 = 55 hand- fed copies

(check that this gives a total bill of 13 dollars yourself)

Sep 3rd, 2014

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Sep 3rd, 2014
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Sep 3rd, 2014
Dec 8th, 2016
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