3 years ago

I have 40 yellow balls and 35 white balls. What is the probability that the next ball randomly pick is yellow

2 answers:

7 0

40 yellow balls
35 white balls
40+35=75 total balls

40 out of 75 total balls are yellow. 40/75 are yellow

P(yellow)=40/75=8/15 or 53.33%

kvv77 [185]3 years ago

6 0

The answer is 53.3333% Because you have to divide 40 by 75 because there are 75 balls and then multiply by 100

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<h3>Solution:</h3>

$\frac{4y}{9} - \frac{2y}{3} = 10 \\ = > \frac{4y - 6y}{9} = 10 \\ = > \frac{ - 2y}{9} = 10 \\ = > y = 10 \times \frac{9}{ - 2} \\ = > y = - 5 \times 9 \\ = > y = - 45$