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PSYCHO15rus [73]
3 years ago
7

At her most recent race, Sue finished in 272 minutes. That is 15% less time than the previous race. What was her time in the pre

vious race?
Mathematics
1 answer:
ValentinkaMS [17]3 years ago
7 0

Answer:

320 minutes was her time on the previous race

Step-by-step explanation:

Let the time spent on the previous race be x minutes.

Given that at her most recent race, Sue finished in 272 minutes which is 15% less time than the previous race then

x - 15% * x = 272

x - 0.15x = 272

0.85x = 272

x = 272/0.85

x = 320 minutes

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==>>We would have to multiply the original amount by 1.50^x because the initial amount would be 1, and 50% increase would be .5 so 1.5 and you raise it to the number of years to show the total increase.

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Let's try our equation.

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