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myrzilka [38]
2 years ago
8

Plzz solve for 15points

Mathematics
1 answer:
fomenos2 years ago
4 0

Answer:

Step-by-step explanation:

You really don't even have to calculate anything.

B can be reduced to 4/5 by dividing 24 by 6 and 30 by 6

C can be reduced to 1/15 by dividing 2 by 2 and 30 by 2

D can be reduced to 1/2.

The answer then is A

2 feet is 2 * 12 = 24 inches.

24/30 = 4/5. See B.

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The product of two rational numbers is 9⁄7 and one of them is 15⁄14. Then the other rational number is​
Rasek [7]

Answer:

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Step-by-step explanation:

To obtain the number in the operation given, we're gonna represent the operation:

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Where:

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Now we are going to solve r to identify its value in numbers:

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  • r = \frac{\frac{9}{7} }{\frac{15}{14}} (We pass a number that is multiplying to the left of the equal, to divide to the right of the equal symbol)
  • r = \frac{6}{5}

As you can see, when we operate, <u>the result is 6/5</u>, and we can prove this multiplying as we had in the original equation, replacing r by 6/5:

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In this form, we know the result is correct.

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