Question

CAN UHELP PLEASE???? I NEED HELP AND I CAN TAKE THETEST ONLT ONE TIME !PLLLLZZZZZ!
A box contains 10 green balls, 15 red balls, 8 white balls, and 7 black balls. What is the probability of drawing a white ball out of the box?

A.1/8 <------- I think it is this

B.1/5

C.1/4

D.1/2

Answer 1

Well add them all up. : 10+15+8+7=40. There are 8 white balls out of 40. 8/40. Find the GCF of them both and simplify them.

8=8 so 8/8 = 1
40=8 so 40/8 = 5 so 1/5 is your answer.

B. is your answer.

Hoped I helped!

Answer 2

In order to do this we must add first. We have to add the balls in order  to get the answer.

10+15+8+7=40


What number is going to go into 40? The white balls right? So....


8/40 is your answer which just needs to be simplified :

Find the GCF of them both and divide.

8/8 = 1
       
40/8 = 5


Your answer is 1/5.

Hoped I helped!