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3 years ago

State if each pair of ratios forms a proportion 12/24 and 3/4

Mathematics

2 answers:

Nata [24]3 years ago

8 0

Answer:

Step-by-step explanation:

12/24 reduces to 1/2, whereas 3/4 does not reduce. This pair of ratios does not form a proportion.

If both ratios reduced to the same common value, that would represent a proportion.

raketka [301]3 years ago

4 0

Answer:

Step-by-step explanation:

12/24 reduces to 1/2, whereas 3/4 does not reduce. This pair of ratios does not form a proportion.

If both ratios reduced to the same common value, that would represent a proportion.

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For a sample of n = 30 scores, X = 45 corresponds to z = 1.50 and X = 40 corresponds to z = +1.00. What are the values for the s

Ber [7]

Answer:

Sample mean = 30

Standard deviation = 10

Step-by-step explanation:

A system with two linear equations can be modeled with the information given in order to find the sample mean (M) and the standard deviation (s):

$z=\frac{X-M}{s}\\\\1.50=\frac{45-M}{s} \\1.00=\frac{40-M}{s}$

Solving the linear system:

$40-M = \frac{45-M}{1.5}\\M=\frac{15}{0.5}\\M=30\\\\s=\frac{45-30}{1.5}\\s=10$

The sample mean is 30 while the standard deviation is 10.

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Am I correct? Will give brainliest!

professor190 [17]

Yes you are correct aaaaaa

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Dvinal [7]

9/10 is .9 as a decimal becsause anything after the decimal in the first place is like that

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An encyclodpedia salesman earns a base pay of $23,9000

kolbaska11 [484]

Answer:

29839150

Step-by-step explanation:

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2 years ago

Determine the product:

stepladder [879]

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