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EastWind [94]
3 years ago
14

A machine stamps 360 metal parts in 15 minutes. Find the unit rate in parts per hour.

Mathematics
1 answer:
ladessa [460]3 years ago
4 0
In one hour there are 60 minutes. 60min/15min = 4

So all you have to do is multiply 360 * 4 which gives you

1140 parts per hour.
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<h3>Answer: $44.10</h3>

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Work Shown:

5% = 5/100 = 0.05

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An alternative is to multiply 42 by 1.05 to get

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We get the same answer. The 1.05 refers to 1 + 0.05 where the "1" is 100% and the 0.05 is 5%, so the two combine to 105%, meaning the total cost is 105% of the cost before tax is considered.

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Step-by-step explanation:

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