An athlete runs 4 miles in 28 minutes and then changes their pace to run the next 4 miles in 32 minutes. Overall, what is the average time in minutes it takes the athlete to run 1 mile?
7 minutes
8 minutes
7.5 minutes
8.5 minutes
Correct Answer : C
to find the average time the athlete runs in 1 mile, find total time divided by total distance covered.
Total distance=4+4=8 miles
Total time=28+32 =60 minutes
From the above, the athlete runs 8 miles in 60 minutes, so the athlete will take how minutes to cover 1 mile.
So, the athlete covers 1 mile in 7.5 minutes.
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Explanation
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If we let x be the cost of two syringes, then we set up a proportion equation with cost as numerator and number of syringes as denominator. The proportion equation becomes
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Explanation
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Explanation
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Converting between teaspoon and mL uses the following conversions:
Or
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Explanation
here we use the US customary system to convert between yards and feet. We use the conversion 1 yard =3 feet. Then, 6 yards to ft is found as
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Explanation
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From the problem above, we are looking for the amount of gratuity the couple can leave.
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Explanation
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Explanation
Correlation of two variables falls into:
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Option b is a negative correlation
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Explanation
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Explanation
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Explanation
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