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VMariaS [17]
3 years ago
13

It takes Emma 18 minutes to type and spell check 14 pages of a manuscript. Find how long it takes her to type and spell check 77

pages. Round to the nearest whole number if necessary
Mathematics
2 answers:
xxMikexx [17]3 years ago
8 0

Answer:

The ratio is 18:14.

Then, we have to divide 77 by 18.

It is 4.277777777..., rounded by 4.

Then, we multiply 18 * 4.277777777...

so, It is 76.99999...

and finally, It is 77.

NNADVOKAT [17]3 years ago
7 0

Answer:

99 minutes, or an hour and 39 minutes.

Step-by-step explanation:

It takes Emma 18 minutes to do 14 pages. That means that we can set up a proportion, where Emma uses 18 minutes to do 14 pages, which is equal to x minutes per page!

\frac{18}{14} =\frac{x}{1}

14x = 18

7x = 9

x = 9/7

So, each page takes 9/7 minutes for Emma to finish.

She will do 77 pages. 77 * (9/7) = 11 * 9 = 99.

So, it will take Emma 99 minutes, or an hour and 39 minutes, to type and spell check 77 pages.

Hope this helps!

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Step-by-step explanation:

Let the smallest angle be 4x. Since, the interior angles are consecutive, the other angles are 4(x+1),4(x+2),4(x+3) and 4(x+4).

Sum of interior angles = 540°

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Using the value of x to calculate the angles:

4x=4*25=100°

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4(x+2)=4*27=108°

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Vcylinder-Vsphere=water


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