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Alecsey [184]
3 years ago
8

HELP ASAP!! WILL GIVE BRAINLIEST!!!! FULL ANSWERS ONLY!!!!!!

Mathematics
1 answer:
Dimas [21]3 years ago
6 0

Answer:

12

Step-by-step explanation:

x = 2n

2n + 2n + 2 + 2n + 4 + 2n + 6 + 2n + 8 = 80

10n = 60

n = 6

x = 12

12 + 14 + 16 + 18 + 20 = 80

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Answer:

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Step-by-step explanation:

this is an equivalent ratio or fraction problem.

4:2 is the same as x:15

You can set it up as a proportion  4/2 = x/15 and cross multiply.

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Answer:

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kvv77 [185]

Answer:

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Step-by-step explanation:

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