Dan runs 4 miles in 30 minutes. At the same rate, how many miles would he run in 18 minutes?
Try this proportion and cross multiply.
4/30 = x/18
Solve for x.
2.4
20
To find out how many miles Dan would run in 18 minutes, we can set up a proportion using the ratio of miles to time.
Let's call the number of miles Dan would run in 18 minutes "x". The proportion would be:
4 miles / 30 minutes = x miles / 18 minutes
To solve for "x", we can cross-multiply and then divide:
(4 miles * 18 minutes) / 30 minutes = x miles
Now, let's do the calculations:
72 miles minutes / 30 minutes = x miles
The 30 minutes cancels out, leaving us with:
72 miles = x
Therefore, Dan would run 72 miles in 18 minutes if he maintains the same rate.