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Ket [755]
3 years ago
12

Help me I want a perfect grade

Mathematics
1 answer:
Zolol [24]3 years ago
3 0

Answer:

2x+10

x=55

Step-by-step explanation:

Perimeter = 2(5+x) = 2x+10

SECOND QUESTION

2x+10=120

2x=110

x=55

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You can infer from this problem that for every 100 m that John was able to run, it takes him 9.93 seconds. To get how much time is needed for 26 – mile marathon, you need to divide 26 miles by 100 meters. But first, you need to convert 26 miles to meters first.

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