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Karolina [17]
3 years ago
14

A copy machine makes 231 copies in 5 minutes and 15 seconds. How many copies does it make per minute?

Mathematics
1 answer:
kotykmax [81]3 years ago
7 0
Put 5 min 15 sec into seconds (315 seconds) and set up a ratio to find how many copies are made every 60 seconds.
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What are three equivalent ratios for 5/45
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3 years ago
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Yakvenalex [24]
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A recipe calls for 1/2 cup of celery,2 1/3 of water and 3/4 cups of carrots. What the combined amont of these three ingredients?
lys-0071 [83]

Answer:

43/12

Step-by-step explanation:

First we must find a common denominator for all 3 fractions, 1/2 cup, 2 1/3 cup, and 3/4 cup all share 12 as a common denominator.

However, let's convert 2 1/3 cup into an improper fraction: there are 2 (3/3 cups) here multiply (3/3) and (2/1) you get 6/3. Finally, add the remaining 1/3 to 6/3 and you get 7/3.

Now, to get all these fractions to have the same common denominator.

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7 0
3 years ago
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