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grandymaker [24]
3 years ago
12

Davison crew can hang 12 sheets of drywall in 15minutes.at this rate how many sheets can they hang in a hour 15minutes =1/4

Mathematics
1 answer:
KengaRu [80]3 years ago
5 0
If 15 is 1/4 of an hour then multiply 12 with 4. It’s 48, they can hang 48 sheets in an hour.
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(a) 2% (b) 15

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(b):

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Given f(x) = 6x^4 – 10x^3 + 40x – 50, find f(2)
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F(x)=6x^4-10x^3+40x-50, plug 2 in for x
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4 0
3 years ago
Explain how you could use either of two operation to solve exercise 10.
wel
You want to know the factor by which 3 2/3 is multiplied to get 7 1/3.

1. You can estimate that it is 2 from 7/3 ≈ 2, then check by multiplication to see if that is right.
.. 2*(3 2/3) = 6 4/3 = 7 1/3 . . . . 2 is the correct factor.

2. You can divide 7 1/3 by 3 2/3 to see what the factor is.
.. (7 1/3)/(3 2/3) = (22/3)/(11/3) = 22/11 = 2 . . . . 2 is the factor Earl used.

3. You could see how many times you can subtract 3 2/3 from 7 1/3.
.. 7 1/3 -3 2/3 = (7 -3) +(1/3 -2/3) = 4 -1/3 = 3 2/3 . . . . . subtracting once gives 3 2/3
.. 3 2/3 -3 2/3 = 0 . . . . . . subtracting twice gives 0, so the factor is 2.

4. You could add 3 2/3 to see how many times it takes to get 7 1/3.
.. 3 2/3 +3 2/3 = (3 +3) +(2/3 +2/3) = 6 +4/3 = 7 1/3
We only need to add two values of 3 2/3 to get 7 1/3, so the factor is 2.

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We have shown methods using multiplication, division, subtraction, addition. Take your pick.
6 0
3 years ago
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