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Studentka2010 [4]
3 years ago
15

PLEASE HELP!! I NEED HELP WITH THIS PROBLEM ASAP!! IF YOU HELP I'LL GIVE U BRAINLIEST!

Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0

Let the amount Tom does = x

Then Larissa’s time would be 3x( 3 times the amount of Tom)

And Neal would also be 3x

The total of the 3 is 84 hours so as an equation you have:

X + 3x + 3x = 84

Combine like terms

7x = 84

Divide both sides by 7

X = 84/7

X = 12 hours

Tom = x, so Tom exercised for 12 hours.

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16

Step-by-step explanation:

(x - y)² = x² - 2xy + y²

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a = 4

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5 0
3 years ago
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