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Bingel [31]
3 years ago
13

The heights in cm of some pupils are

Mathematics
1 answer:
tatuchka [14]3 years ago
4 0

The median is a halfway point in the set of data.

List the numbers in order from smallest to largest:

111, 129, 144, 149, 152, 162, 166, 171

Because there are an even number of values in the data set, find the two middle numbers, add them together and then divide by 2:

Median = ( 149 + 152 ) /2

Median = 150.5

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Twenty-five less two times a number, x, is fifteen.
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x=20

Step-by-step explanation:

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2x=40

x=20

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3 years ago
Is 2/3(3/4x-3/2) equal to 1/2x -1
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that would be the anwer

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8 0
3 years ago
Find the doubling time of an investment earning 7% interest if interest is compounded continuously
Alex

Answer:

The doubling time of this investment would be 9.9 years.

Step-by-step explanation:

The appropriate equation for this compound interest is

A = Pe^(rt), where P is the principal, r is the interest rate as a decimal fraction, and t is the elapsed time in years.

If P doubles, then A = 2P

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The doubling time of this investment would be 9.9 years.

5 0
3 years ago
John walks m miles each week. Marie’s distance can be found by using the expression : 3m + ½
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