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3 years ago

a string was 4m long. she gave 1/4m of it to her sister and 3/4m to her friends. how much string had she given away?

1 answer:

OverLord2011 [107]3 years ago

6 0

The correct answer is: " 1 m " .
____________________________
Explanation:
____________________________
Add up the amounts she had given away:

3/4 m + 1/4 m = 4/4 m = 1 m.
____________________________
The answer is: " 1 m " .
____________________________

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Urgent! Will award brainliest...<br> Factor the following polynomial:<br> <img src="https://tex.z-dn.net/?f=3a%5E%7B2%7D-21a%2B3

umka2103 [35]

Answer:

$3 (a-2) (a-5)$

Step-by-step explanation:

The first step is to find the GCF. Here, it's 3.

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Then, you factor the polynomial in the parenthesis.

To find the factors, you will need to find 2 numbers that add to -7, and multiply to 10. -2 and -5 add to -7 and multiply to 10. Now, replace -7a with the factors.

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This of this polynomial as 2 problems.

$a^2-2a$ $-5a+10$

Then, factor again.

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$a(a-2)$ $-5(a-5)$

Then, you keep the factors in parenthesis, and combine the numbers on the outside.

$(a-2)(a-5)(a-5)$

Since, there are 2 of the same factor, you only need one.

$(a-2)(a-5)$

BUT REMEMBER!! In the very beginning, we had a 3 that we took out, we STILL need to add that to the final answer. The <u>final answer</u> is:

$3 (a-2) (a-5)$

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Step-by-step explanation:

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