Question

James jogs 7,920 yards every week. How
many miles does James jog every week?

Answer 1

4.5 miles

Explanation:

Hello!

Let's take note the conversion factor of 1 mile=1760 yards.

We can use this relation to make a proportionality rule.

We don't KNOW the milage of James, but we know how many yards he ran.

`(1~mile)/(1760~yards) = (x~miles)/(7920~yards)`

We can cross multiply to figure out x, the miles he ran.

(1)(7920)=1760(x)

7920=1760x

4.5=x

James ran 4.5 miles every week.