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Mekhanik [1.2K]
3 years ago
9

Yohanna is conditioning all summer to be fit for the next soccer season at his high school. He incorporated walking planks into

his daily workout regime. Each day, he will complete 4 more walking planks than the day before. If he starts with 5 walking planks on the first day, how many walking planks will he do on the twelfth day?

Mathematics
1 answer:
BARSIC [14]3 years ago
4 0

I'm pretty sure the answer is 53.

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a parallelogram has sides that are parallel to the opposite side. This means that y + 7 is going to be parallel to 20.

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then, you can proceed to find y by isolating it:

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