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matrenka [14]
3 years ago
8

Which alternative is the NEGATIVE reciprocal of -1/8?* A-8 B. -1/8 C. 1/8 D. 8

Mathematics
1 answer:
valkas [14]3 years ago
6 0

Answer:

Reciprocal simply means... swap the denominator for the Numerator...

Now negative Reciprocal now means... Swap the denominator by the numerator and Multiply by -1

So

1/-8 becomes

-(-8/1)

=8.

Option D

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If it takes 10 seconds for 10 printers to print out 10 pages of paper, how many seconds will it take 50 printers to print out 50
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Lets use the formula RWT=J to solve this, where,

  • R is the rate
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  • T is time
  • J is number of jobs/things

<em><u>"If it takes 10 seconds for 10 printers to print out 10 pages of paper"</u></em> - here -

W is 10 printers, T is 10 seconds,  and J is 10 pages. We can write:

R(10)(10)=10\\R(100)=10\\R=\frac{10}{100}\\R=0.1


<u><em>"how many seconds will it take 50 printers to print out 50 pages of paper"</em></u><em> - here we use R=0.1 (previously found) to figure out T.</em>

<em>RWT=J\\(0.1)(50)T=50\\5T=50\\T=\frac{50}{5}\\T=10</em>

So it will take 10 seconds for 50 printers to print 50 pages.


ANSWER: 10 seconds

4 0
3 years ago
Read 2 more answers
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