The median number of students in each music class is 19 people. 16,__,24,17,20,21 What should be the number in the blank?

1 answer:

3 0

20 is the lowest of the upper 3 numbers, so the missing number must be 19 when averaged with 20. That is, the missing number must be ...
2*19 -20 = 18

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Kenny had a total of 140 minutes to read, do homework, and play video games. he spent x minutes reading. he spent 2(x + 5) minut

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Answer:

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Step-by-step explanation:

given that the total time spent is 140min

and that the time spent reading is x minutes

and also that the time spent doing home work is 2(x+5)

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the expression for the total time is given as

total = reading +homework +video game

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solving for x we have

140=x+2x+10+25

140=3x+35

140-35=3x

105=3x

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