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forsale [732]
3 years ago
8

Contestants in a dance-a-thon rest for the same amount of time every hour. A couple rests for 27 minutes In 3 hours. How long di

d they rest in 5 hours?
Mathematics
1 answer:
NeX [460]3 years ago
4 0

Set up a ratio and solve for the missing value:

\frac{27}{3} =\frac{x}{5}\\x = \frac{(27)(5)}{3}\\x = 45


The couple rested for 45 minutes in 5 hours.

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Answer:

The 1st term is -67

Step-by-step explanation:

I. When Sn = \frac{n}{2}(a_{1} +  a_{n})

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                124 = 8/2(a + 98)

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Hope that help :D

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