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3 years ago

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Gary exercises 1.75 hours on Mondays, Wednesdays, and Saturdays. How many weeks will it take Gary to exercise a total of 21 hour

s?
What equation models the problem?

How many weeks will it take Gary to exercise a total of 21 hours?

1 answer:

Nostrana [21]3 years ago

4 0

Answer: The equation is 5.25x = 21 and it will take Gary 4 weeks to exercise 21 hours.

Step-by-step explanation:

So we know a week is 7 days and Gary exercise 3 days out of the 7 days.

so we will have to multiply 3 * 1.75 to find the number of hours that she exercise in 1 week.

3 * 1.75 = 5.25 so Gary exercises 5.25 for every week so now we could use x to represent the number of weeks Gary will take to exercise 21 hours.

5.25x = 21 where x is the number of weeks.

x= 4

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Step-by-step explanation:

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