Answer:
100 black marbles
Step-by-step explanation:
The experimental probability of a black marble is
P(black) = 4/20 = 1/5
We expect that out of the 500 marbles in the box, 1/5 of them are black
1/5 (500) = 100
There should be 100 black marbles
Answer:
answer is not
Step-by-step explanation:
clear sorry
Answer:
the answer for the operation that should be used to solve x+7 is -7
