Question

The track team is trying to reduce their time for a relay race. First they reduce their time by 2.1 minutes. Then they are able to reduce that time by 1/10. If their final time is 3.96 minutes, what was their beginning time?

What was the track teams initial relay time in minutes?

Answer 1

the beginning time is 15.97 minutes.

Explanation:

Using the appropriate arithmetic operation, the beginning time would be 15.97 minutes.Given the following information :First reduction, t1 = 2.1 minutes Second reduction, t2 = 10 minutes Beginning time = vExpressing the information thus :v - t1 - t2 = final timev - 2.1 - 10 = 3.96v - 12.1 = 3.96v = 3.96 + 12.1 v = 15.97 minutes. Hence, the beginning time is 15.97 minutes.