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miss Akunina [59]
2 years ago
7

Rewrite in simplest terms: -3(7n+5n+8)-8n

Mathematics
1 answer:
iris [78.8K]2 years ago
5 0

Answer:

28n+24

Step-by-step explanation:

3 ( 7 n + 5 n + 8 ) - 8 n

combine 7n and 5n to get 12n

3 ( 12n + 8 ) - 8

distribute 3 to 12n +8

36n+24-8n

combine like terms

28n+24

since ypu cant simply any more it stays like thats

*by the way there is an app that helps with equation and explains the process, its Microsoft Math Solver. hope it helped

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Lana finished the race in 13.2 seconds . If 84 other girls ran in the event, approximately how many runners did she beat?
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Complete question :

The 100m dah times in the girl's track meet were normally distributed with a mean of 13 seconds and a standard deviation of 0.3 seconds.

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Answer:

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Mean, μ = 13 seconds

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