There are 4 red marbles and 7 blue marbles and 5 yellow marbles in a bag. Monica will randomly pick two marbles out of the bag r
eplacing the first marble before picking the second marble. What is the probability of Monica picking a red and then blue marble?
1 answer:
Answer:
1/4 and then 7/15
Step-by-step explanation:
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Answer:
12.5%
Step-by-step explanation:
$4.50-$4/$4 x 100%
0.5/4x100%
50/4= 25/2 = 12.5%
Answer:
The answer is D
Step-by-step explanation:
Because it specialises the groups that go into the number.
First replace y with 15.
1/5x-10=30
Then just solve from there.
x=200
