All categories

2 years ago

1. Find 2 arithmetic means between 12 and 21.

1 answer:

Nookie1986 [14]2 years ago

8 0

I believe it would be 16.5, since you add 12+21=33 then divide it by however many numbers you have (this case it’s 2) and divide it by 2, which equals 16.5

You might be interested in

6. 200 pages to 600 pages<br>percentage of change

adell [148]

Answer:

What

Step-by-step explanation:

7 0

2 years ago

152 ? 6394÷42 i don't understand how

Natasha2012 [34]

Answer:

Using long devision

Step-by-step explanation:

I believe the answer is B

8 0

2 years ago

THIS IS MY LAST ONE BROS.

Lady bird [3.3K]

Hello!
Some sample keys for the true or false three question test would be:

Keys are: False, False, False, True, True, True, False, False, True, True, True, False, False, True, False, True, False, True. False, True, True, True, True, False. Those are all the possible combinations for the answer key. (every 3 is a group). Hope this helps! Have a great day!

3 0

2 years ago

The Big Telescope Company sells circular mirrors. Their largest mirrors have radii of 5 meters and their smallest mirrors have r

pogonyaev

Answer: 1:5

Step-by-step explanation:

Given: The cost of every mirror is proportional to the cube of the mirror's radius.

i.e. $\dfrac{\text{Cost of smallest mirror}}{\text{Cost of largest mirror}}=\dfrac{(\text{radii of smallest mirror}^3)}{\text{(radii of largest mirror)}^3}$

Their largest mirrors have radii of 5 meters and their smallest mirrors have radii of 1 meter.

Then,

$\dfrac{\text{Cost of smallest mirror}}{\text{Cost of largest mirror}}=\dfrac{1^3}{(5)^3}=\dfrac{1}{125}$

The ratio of the total cost of 25 of the company's smallest mirrors to the cost of one of the company's largest mirrors will be:

$\dfrac{\text{Cost of 25 smallest mirror}}{\text{Cost of largest mirror}}=\dfrac{25\times 1}{125}=\dfrac{1}{5}$

Hence, the ratio of the total cost of 25 of the company's smallest mirrors to the cost of one of the company's largest mirrors = 1:5 .

5 0

2 years ago

Help i will give 20 points!!

posledela

Y is the very top, X is the other one, origin is labeled (0,0) A is the very first box going from left to right B is the highest box and C is the lowest

3 0

2 years ago

Read 2 more answers

1. Find 2 arithmetic means between 12 and 21.​

1. Find 2 arithmetic means between 12 and 21.