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lesya [120]
3 years ago
14

Kim is 12 years old. If her age is 25% of her mother’s age, how old is her mother?

Mathematics
2 answers:
Andreas93 [3]3 years ago
7 0

Answer: Her mom is 48 years old.

Step-by-step explanation:

If

12 = 1/4 of x (her mom's age)

12 divided by 1/4

12    x  4                       = 48

1            1

x = 48

Rus_ich [418]3 years ago
3 0

Answer:

48

Step-by-step explanation:

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Answer:

  x = 5, x = 11

Step-by-step explanation:

Set f(x) = 0 and solve for x.

  0 = (x -8)² -9

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  ±√9 = x -8 . . . . . take the square root

  ±3 +8 = x . . . . . . . add 8

That is, ...

  x = 8 -3 = 5 . . . . lesser x

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Mariana [72]
We know by definition that complementary angles add up to 90 degrees. We can set up an equation using the ration given:

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We now know that the number we multiply the ratio by is 3. The smaller number in the ratio is 13, and so therefore we multiply it by 3.

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8 0
3 years ago
An airplane flies into the wind for 5 hours, traveling 900 miles. The airplane then
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Answer:

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Step-by-step explanation:

<u>Given system of equations</u>

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<u />

<u>Set equations equal to each other</u>

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4(9w+w)=900

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