I need help with my homework :/

Answers

Answer 1

Answer: I HAVE THE FOLLOWING APPROACH
WE KNOW THAT THE MEAN IS 17,
WE ADD ALL THE NUMBERS AND GET 142+A+B= 17*10
142+A+B=170
A+B=28
NOW MEDIAN IS 18,
WE HAVE 10 NUMBERS, THAT MEANS THE MEDIAN WILL BE (17+B)/2=18
B=19
A=9
THESE ARE YOUR NUMBERS

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20x what =100 please help now thanks

Answers

x=5
100/20=5 so 5*20=100
Hope it helps:)

20x5=100

20.40.60.80.100

when it does this this 20x it means 20 time x = 100

hope this helped

In a school with 300 students and 15 teachers what is the student - teacher ratio?

Answers

It 20:1
This is a basic math problem which can be solved by simply dividing 300 by 15.

300:15
Ti simplfy just dived the two numbers

Solve and then use estimation to make sure your answer is reasonable. Kyle can read 22 pages of his book in an hour. Kyle read for 114.5 hours last summer.

How many pages did Kyle read last summer?

Answers

You would round the answer by rounding

114.5 rounds down to 100
22 rounds down to 20

100×20=2,000

The real answer is 2,519. This is close to 2,000, so this answer is reasonable.

114.5 x 22 = 2,519
she read about 2,500 pages last summer

Carl knows the required height of the volume of a cone-shaped vase he’s designing. Which formula can he use to determine the radius of the vase. Select the correct answer.A. r = V/ 3πh
B. r = V /πh
C. r = 3V/ πh
D. r = ± /V πh

Answers

the volume of a cone is calculated like this:
V = pi*r^2*h/3
so we have to solve for radius:
r = √(3V/pi*h)
that is how to get the radius.
From your answers, C answer approaches to it, but it lacks the square root which is fundamental as well

Need help!! Show work if possible and no rounded decimals!