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padilas [110]
1 year ago
15

If 10 men can build a wall in 12 days , how long will it take 4 men

Mathematics
1 answer:
laila [671]1 year ago
8 0

Answer:

4.8 days

Step-by-step explanation:

12/10 = 1.2

1.2 x 4 = 4.8

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Answer:

Option D)Neither solution is extraneous.

Step-by-step explanation:

we have

\sqrt{11-2x}=\sqrt{x^{2}+4x+4}

we know that

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<u><em>Verify each solution</em></u>

Substitute each value of x in the expression above and interpret the results

1) For x=-7

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therefore

x=1 is not a an extraneous solution

therefore

Neither solution is extraneous

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3 years ago
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