Question

HELP UNDERSTANDING??
**IM BAD AT MEASUREMENTS
It took Xander 31 minutes to run a 5-kilometer race last weekend. If you know that 1 kilometer equals 0.621 mile, how many minutes did it take Xander to run 1 mile during the race? Round your answer to the nearest hundredth.

1.99 minutes
3.105 minutes
9.98 minutes
15.52 minutes

Answer 1

First, convert 5 km to miles

Answer 2

3.10686 miles?

Answer 3

Yep that's about right, now do you know how to set that to a proportion?

Answer 4

ahhh 0_o proportion?

Answer 5

\[\frac{ 3.10686 }{ 31 } = \frac{ 1 }{ x }\]
It looks something like this

Answer 6

Now solve for x

Answer 7

3.10686x/31

Answer 8

3.10686x = 31
Now divide both sides by 3.10686

Answer 9

9.97791982902

Answer 10

Yep, that's correct :)

Answer 11

That's the answer

Answer 12

so c? thank you!

Answer 13

Yep, no problem