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vlabodo [156]
2 years ago
10

A number is taken away from 40 and the result is 45 What is the number?​

Mathematics
1 answer:
hammer [34]2 years ago
7 0

Answer:

-5

Step-by-step explanation:

<u>Given that , </u>

  • A number is taken away from 40 and the result is 45 .

<u>L</u><u>et </u><u>:</u><u>-</u><u> </u>

  • The required number be x .

<u>According</u><u> to</u><u> Question</u><u> </u><u>:</u><u>-</u><u> </u>

:\implies 40 - x = 45

:\implies - x = 45 - 40

:\implies - x = 5

:\implies x = -5

<h3>Hence the required answer is -5 .</h3>
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<h3>Answer:</h3>
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If Alex cut his wire 18 times, he ended up with 19 equal pieces. He kept 7, so has 7/19 of his 1/3 of the wire.

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Bob kept (3/7)·(1/3)·126 cm = 18 cm.

Alex kept (7/19)·(1/3)·126 cm ≈ 15.47 cm.

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