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babunello [35]
3 years ago
12

What is the greatest common factor of 42a5b3, 35a3b4, and 42ab4?

Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0

For this case we have that by definition, the Greatest Common Factor (GCF) is the largest factor that 2 numbers have in common.

So, we have the following expressions:

42a ^ 5b ^ 3\\35a ^ 3b ^ 4\\42ab ^ 4

We look for the positive integers that divide to 35 and 42 without leaving residue:

42: 1,2,3,6,7,14,21

35: 1,5,7

Thus, the GCF of 42 and 35 is 7

Then, the GCF of the three expressions is:

7ab ^ 3

Answer:

7ab ^ 3

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Given:

The rate of interest on three accounts are 7%, 8%, 9%.

She has twice as much money invested at 8% as she does in 7%.

She has three times as much at 9% as she has at 7%.

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Amount invested on each rate.

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Suppose x be the amount invested at 7%. Then,

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Dividing both sides by 50, we get

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3 years ago
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OverLord2011 [107]

Answer:

Put 4.71 over 0.2 and make sure to line up the decimal.

4.71

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Step-by-step explanation:

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