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nlexa [21]
3 years ago
12

Add 5 to me. Then divide by 7. If you add 12 and then subtract 7 you get 10. What number am I

Mathematics
2 answers:
Alinara [238K]3 years ago
8 0

Answer:

x = 30/7

Step-by-step explanation:

Unknown number = x

Write an equation

x + 5 ÷ 7 + 12 - 7 = 10

Simplify

x + 5/7 + 12 - 7 = 10

x + 5/7 + 5 = 10

x + 5/7 = 5

x = 30/7

Hope this helps :)

algol [13]3 years ago
4 0

Answer:

30

Step-by-step explanation:

work in reverse:

10+7=17

17-12=5

5×7=35

35-5=30

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Answer:

Unit rate by which the runner completed the marathon is 0.13 miles per minute.

Step-by-step explanation:

A runner competed a marathon of 26.2 miles in 210 minutes.

we can get unit rate by unitary method.

∵ In 210 minutes a runner completes the distance = 26.2 miles

∴ In 1 minute runner will complete the distance = \frac{26.2}{210}

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Answer:

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