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3 years ago

7

PLEASE HELP MARKING BRAINLIEST

1 answer:

Luba_88 [7]3 years ago

8 0

The answer is B, I believe.

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A) average of p and 10 is 16,p=?<br>b) average of z and 12 is 10,z=?

Ahat [919]

Answer:

p = 22

z = 8

Step-by-step explanation:

Average is sum of the terms divided by number of terms.

<u>Question # 1:</u>

Given that:

$\displaystyle \frac{p+10}{2} = 16\\\\Multiply\ both\ sides\ by \ 2]]\\ p+10 = 2 \times 16\\\\p+10 = 32\\\\Subtract \ 10\ to \ both \ sides\\\\p = 32-10\\\\p = 22$

<u>Question # 2:</u>

Given that:

$\displaystyle \frac{z+12}{2} = 10\\\\Multiply \ both \ sides \ by \ 2\\\\z+12 = 10 \times 2\\\\z+12 = 20\\\\Subtract \ 12\ to \ both \ sides\\\\z = 20-12\\\\z = 8\\\\\rule[224]{225}{2}$

Hope this helped!

<h3>~AH1807</h3>

5 0

3 years ago

To obtain an estimate of the proportion of "full time" university students who have a part time job in excess of 30 hours per we

musickatia [10]

Answer:

2,436 students

Step-by-step explanation:

At a 90% confidence level, the z-score is 1.645 and the confidence interval is given by:

$x\pm z\frac{s}{\sqrt n}$

Where s is the standard deviation, and n is the sample size.

If they want the length of their confidence interval to be no greater than 0.2, it must be no further than 0.1 from the mean 'X':

$0.1>1.645\frac{3}{\sqrt n}\\\sqrt n>1.645*30\\n>2,435.42$

Rounding up to the next whole number, the sample size should be 2,436 students.

5 0

4 years ago

Which pair of transformations will NOT preserve the size and the shape of the figure?

wel

There isn’t a picture so we can see

8 0

3 years ago

A foam material has a density of 175 g/l. what is its density in units of lb/ft3? How do you get 1 gram/liter = 0.06242796 pound

mrs_skeptik [129]

Answer:

Given: 175 g/L

1 gram/liter = 0.06242796 pound/cubic foot

175 g/L * 0.06242796 pound/cubic foot= 10.924893 lb/ft3

So, a foam material has a density of 10.924893 lb/ft3 in units of lb/ft3

Step-by-step explanation:

5 0

4 years ago

Estimate the line of best fit using two points on the line.

charle [14.2K]

Answer:

8x + 80

Step-by-step explanation:

positive side

7 0

3 years ago

Read 2 more answers