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Citrus2011 [14]

3 years ago

14

What is the the highest common factor of 25 and 45?

1 answer:

serg [7]3 years ago

5 0

Five because both 45 & 25 are not divisible by 2, 3, 4, 6, 7, 8 or 9.

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The local sports shop has backpacks on sale for $28. The original price was $40. What is the percent decrease for the backpack p

emmainna [20.7K]

30%. 40-28 =12. 12/40 =30%

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3 years ago

Shelly biked 21 miles in 4 hours. What is shellys average speed in miles per hour? At the same rate how many hours will it take

tekilochka [14]

21 divide by 4 is 5.25. She travels 5.25 miles per hour. 42 divide by 5.25 is 8. It would take 8 hours for Shelly to bike 42 miles.

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3 years ago

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What is the range of 2 4 2 6 1

sashaice [31]

4 6-2 = 4 you subtract the largest and smallest number to get the answer

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2 years ago

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melomori [17]

Answer:

'''who else has trouble with math and then gets ridiculed and made fun of by teachers and adults and other, smarter students and then just wants to die?''

YES!

3 0

3 years ago

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8u/u^2-18u+81 subtract 72/u^2-18u+81

Karo-lina-s [1.5K]

Your question is:
$\frac{8u}{u^2-18u+81} -\frac{72}{u^2-18u+81}$
Then, the above formula equate:

$\frac{8u-72}{u^2-18u+81}$
Factor out 8 from the numerator we get:
$\frac{u-9}{u^2-18u+81}$
Factorization of the denominator:
$\frac{u-9}{(u-9)^2}$
Simplifying the numerator and the denominator by (u-9) we get:
$\frac{1}{(u-9)}$

6 0

3 years ago