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Lelechka [254]
3 years ago
12

A copy machine makes 24 copies per minute . how long does it take to make 84 copies

Mathematics
2 answers:
liberstina [14]3 years ago
6 0
Use the ratio:

24 copies 84 copies
—————- = ——————
1 minute x

On the top, you multiplied 24 by 3.5 to get to 84. Therefore, you must do the same on the bottom (denominators).

1 minute x 3,5

1 x 3.5 = 3.5

So, it takes 3.5 minutes to make 84 copies.


Hope this helps! c:
malfutka [58]3 years ago
3 0
Simply divide 84 by 24

\frac{84}{24} = \frac{21}{6} = 3 \frac{3}{6} = 3 \frac{1}{2}

3 \frac{1}{2} \: minutes
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