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nordsb [41]
2 years ago
7

A sum of two mixed numbers is given. What is the missing number?

Mathematics
1 answer:
kaheart [24]2 years ago
4 0

Answer:

16.

Step-by-step explanation:

The whole numbers stay the same so it stays as 2. The way they get 30 for the denominator is by multiplying the fraction 1/3 by 10 and 1/5 by 6. So now we have 10/30 and 6/30. Add them together, 10+6=16

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Step-by-step explanation:

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2 years ago
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Leokris [45]

Answer: She is correct because each ratio is equivalent to 5:1, except for the last one, which is 1:5

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3 years ago
Solve for x. 3^x−1=9^x+2 <br> Enter your answer in the box.
slava [35]

Answer:

-5 =x

Step-by-step explanation:

3^(x-1) = 9^(x+2)

Replace 9 with 3^2

3^(x-1) = 3^2^(x+2)

We know that a power to a power means the powers are multiplied

a^b^c = a^(b*c)

3^(x-1) = 3^(2x+2)

When the bases are the same, the powers have to be the same

x-1 = 2x+4

Subtract x from each side

x-x-1 =2x-x+4

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Subtract 4 from each side

-1-4 =x+4-4

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4 0
3 years ago
One solution to the problem below is 5 what ya the other solution a^2-25=0
Alex

-5

a^2-25=0

a^2=25

take the square root of both sides

a=5, and -5

5 0
3 years ago
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