3y - 5 if y = 8 answer the expression, please

Mathematics

2 answers:

Elena-2011 [213]3 years ago

7 0

3(8)-5

3x8=24

24-5=19

the answer is 19

jolli1 [7]3 years ago

5 0

Answer:

y=19

Step-by-step explanation:

if y=8 and the expression is 3y-5 then you substitute the 8 in for the y. 3(8)-5

3x8=24 so 24-5 is 19

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If an urn has 5 white balls 10 red balls what is the probability that 5 randomly selected balls contain exactly 3 white balls?

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Without Mincing words let us dive straight into the solution to the question above. We are given the following information which is going to aid in solving this particular question.

====> It is given, that there are 5 white balls and 10 red balls. Hence, the number of the total balls = 5 white balls + 10 red balls = 15 balls.

Therefore, the probability that 5 randomly selected balls contain exactly 3 white balls = $\left[\begin{array}{ccc}5\\3\end{array}\right]$ × $\left[\begin{array}{ccc}10\\2&\end{array}\right]$ ÷ $\left[\begin{array}{ccc}15\\3\\\end{array}\right]$ = 450 ÷ 3003 = 0.15