a box of colored pencil contains exactly 8 red pencils. the probability of choosing a red pencil from the box is 2/7. how many of the pencils in the box are not red?
a)5
b)17
c)20
d)28

If there are 8 red pencils and the probability of choosing it is 2/7 then the total number of pencils inside the box is equals to 8 (the number of red pencil) ÷ 2 (the probability of choosing a red pencil) × 7 (the possibility space).

[tex]\frac{8}{2} * 7[/tex]

There 20 pencils that aren't red.

In getting the answer, just subtract the (number of red pencil) to the (total number of pencils in the bag.

28 - 8 = 20

a box of colored pencil contains exactly 8 red pencils. the probability of choosing a red pencil from the box is 2/7. how many of the pencils in the box are not red?​a)5b)17c)20d)28

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a box of colored pencil contains exactly 8 red pencils. the probability of choosing a red pencil from the box is 2/7. how many of the pencils in the box are not red?
a)5
b)17
c)20
d)28