Question

In gym class, Jeremiah ran one mile in 7.2 minutes; Arianna ran one mile in 6.75 minutes, and Raven ran one mile in 7.08 minutes. How much longer did it take Jeremiah to run than Raven?​

Answer 1

Resposta: Jeremiah took 7.2 seconds more than Raven to run one mile.

Explicação passo-a-passo: Hi there!

First of all, you need to remember that 1 minute equals to 60 seconds. You also need to remember that, as long as the exercise sayed the time in minutes, you can't only subtract the time that Raven took from Jeremiah's, because that would be imprecise. It's necessary to put that difference between in their times in seconds. So:

Jtime - Rtime = 7.2 - 7.08 = 0.12 minutes

Now, all you need is to use a ratio relation between this amount of time and 1 minute to 60 seconds. So:

$\frac{1}{60} = \frac{0.12}{x}$

x = 7.2 seconds

Jeremiah took 7.2 seconds more than Raven to run one mile.