A small bag has 8 black beans, 5 white beans, and 12 red beans. Find the probability of picking a red then a black bean if you d
2 answers:
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Hey there!
Let's call this "number" x. We want four times the sum of this number and 15 to equal at least 120.
Therefore, we want this number times four plus fifteen to be greater than or equal to 120. We have:
Distribute:
Subtract:
Divide:
Your answer is C.
Hope this helps!