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Mathematics 21 Online
OpenStudy (anonymous):

@SolomonZelman @sourwing 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 B.1/5 C.1/4 D.1/2

OpenStudy (anonymous):

HELP

OpenStudy (dejmccray):

I say B. 1/5

OpenStudy (anonymous):

okay add all of the numbers together to get the total. 10+15+8+7=40 that's the total amount of balls next the number of white balls which is know to be 8 your answer will be (number of white balls)/(number of total balls) 8/40 simplify 4/20 2/10 1/5 your answer will be B Hope this helps

OpenStudy (anonymous):

A tire manufacturer found that 2% of its tires had defects. If 5000 tires are sold, how many could be expected to have defects?

OpenStudy (anonymous):

help

OpenStudy (anonymous):

nevermined it is 100

OpenStudy (dejmccray):

yeah that's what I got 100

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