Answer:
50.04
Step-by-step explanation:
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Answer:
There are 21 ways to choose the first person, 20 ways to choose the second, 19 ways for the third and 18 ways for the fourth so the answer is 21 * 20 * 19 * 18 = 143640.
I think this is how you do it: You would multiply 3/8 to 3/4 min...then convert into decimal..and get 0.5 min.
Direct variation is of the form y=kx (inverse variation is of the form y=k/x)
