3 years ago

If the denominator of 7 12 is increased by a number and the numerator of the fraction is doubled, the result is 1. find the numb

er.

Mathematics

1 answer:

den301095 [7]3 years ago

4 0

$\frac{7*2}{12+x} = 1 \rightarrow 12+x = 14 \rightarrow x=2$

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Nadusha1986 [10]

Answer:

is not possible

Step-by-step explanation:

<u><em>The question in English is</em></u>

we are building a road that links the points a = (12 ,21) and b =(17,23) another point is in c =(3,9) it is possible that a single road allows to join these three points?

we know that

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$m=\frac{y2-y1}{x2-x1}$

step 1

Find the slope ab

we have

a = (12 ,21) and b =(17,23)

substitute

$m=\frac{23-21}{17-12}$

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step 2

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we have

a = (12 ,21) and c =(3,9)

substitute

$m=\frac{9-21}{3-12}$

$m=\frac{-12}{-9}$

simplify

$m=\frac{4}{3}$

step 3

Compare slopes ab and ac

The slopes are different

That means ----> is not possible that a single road allows to join these three points

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3 years ago

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IrinaK [193]

Answer:

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Step-by-step explanation:

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Tcecarenko [31]

To find the answer for this simply multiply 2.5 by 1.58

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Step-by-step explanation:

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3 years ago