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aev [14]
3 years ago
7

Which is a valid proportion? 3/4=21/28 5/6=29/30 4/7=16/49 2/5=12/15

Mathematics
2 answers:
zavuch27 [327]3 years ago
7 0

Answer:

A valid proportion would be 3/4=21/28.

Step-by-step explanation:

You would multiply both the 3 & 4 is 3/4 by 7 to get 21/28.

jasenka [17]3 years ago
5 0

Answer:

3/4=21/28

Step-by-step explanation:

This is because 3×7=21 and 4×7=28

Both numbers in the original fraction must be multiplied by the same number to get the equivalent fraction.

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Solve this problem using the Distributive Property.<br><br> 2 ( 7 + 8 ) =
maria [59]

Answer:

30

Step-by-step explanation:

Original Equation: 2(7 + 8)

So you have to multiply 2 by 7 which equals 14

Then you multiply 2 by 8 which equals 16

Your equation should now look like this: 14 + 16

Add 14 and 16 together.

Your answer is 30

Hope I helped :)

Please condsider brainliest

7 0
4 years ago
3/4 to the 3rd power
spin [16.1K]

The number 3/4 to the power 3 is equal to 27/64.

Given that the number is 3/4 and we are required to find the value of that number to the power 3.

In mathematics, a power series is basically an infinite series of the form where aₙ represents the coefficient of the nth term and c is a constant.

Number=(3/4)^{3}

To find the value of 3/4 to the power 3, we have to multiply 3/4 by 3/4 two times.

(3/4)^{2}=3/4 *3/4 *3/4

=27/64

Hence the number 3/4 to the power 3 is equal to 27/64.

Learn more about number at brainly.com/question/1746829

#SPJ9

8 0
2 years ago
Let the random variable x be equally likely to assume any of the values 1/10, 1/5, or 3/10. determine the mean and variance of x
Keith_Richards [23]
Since the values are equally likely and equally spaced, their mean is the middle one.
  the mean is 1/5

The variance is the average of the square of the deviations from the mean.
  σ² = (1/3)((-1/10)² + 0² + (1/10)²) = 2/300
  the variance is 2/300
6 0
3 years ago
Amanda is hiking with her daughter, Mia who is only 1 yaar old and has very short leg. For every 3 steps Amanda makes, Mia takes
spayn [35]
Amanda table values: 3, 6, 15, 30
Mia Table values: 5, 10, 25, 50
7 0
3 years ago
a truck and its load weigh 22,800 pound. if the load weight 12,400 pounds more than the truck, how many does the truck weight?
alexandr1967 [171]
10,400 pounds I think
5 0
4 years ago
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