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Nikitich [7]
3 years ago
6

Heather spent a total of 70 minutes working out at the gym.

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0

Answer:

choice 4

Step-by-step explanation:

t = treadmill time

w = wt lift time

70 is total time

so t+w = 70

next t is 20 more than w

t = w+20

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Determine a and k so the given points are on the graph of the function.
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Step-by-step explanation:

Explanation:

Because

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Same for the next point:

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Step-by-step explanation:

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