a carpenter goes through 2 3/5 boxes of nails finishing 3 1/2 rooves. How much would he use finishing 8 roves?

1 answer:

7 0

Find the unit rate first, and then multiply it by 8:

2 3/5 boxes
---------------- = 13/5 divided by 7/2.
3 1/2 roofs

You can obtain the correct result by inverting the divisor, 7/2, and then multiplying:

13/5 times 2/7. This comes out to 26/35. That represents 26/35 box of nails per roof.

To do 8 roofs (not roves), you'd need (26/35)(8/1) boxes: 5.94 boxes. Why not buy 6 boxes to be sure you'll have enough?

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If you worked for 6 days for a total of 67.8 hours. If I worked the same number of hours each day, how many hours did I work in

Hunter-Best [27]

Hi there!

To solve this problem, we need to divide 67.8 by 6 to find the amount of hours each day.

67.8 / 6 = 11.3

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Hope this helps!

8 0

2 years ago

Help with 21 would be much appreciated.

umka2103 [35]

Answer:

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