A bag contains 80 marbles: 40 are red, 20 are blue, and 20 are black. what is the probability of selecting a red or blue marble
at random
1 answer:
40 % out of 80 for red
20% out of 80 for blue
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Answer:
Between
Step-by-step explanation:
7x+18>-3
Subtract 18
7x>-21
Divide by 7
X>-3
Move 9 over to the other side so your equation looks like this:
9n = 9 - 9
Then simplify
9n = 0
n = 0
2x - 4 = 8
2x = 8 + 4
2x = 12
x = 6
so he answer is e. 6
Answer is 1.. look at picture for explanation.