Tom converted the height this way 3 feet=1 yard
conversion factor: 3 ft over 1 yard
379ft/1x3ft/1yard= 1,137

what is tom's error and show how to correctly convert 379 feet to yards.
so, 379 feet= ?

how did i know tom's answer was incorrect?

75 ballons in 3 hours

Step-by-step explanation:

We know the ratio min to balloon, 12:5.

A common factor of 60 is 12 and 5. We know that 5 balloons will come out of the 12 interval mark. So each hour, we get 25 balloons per hour. Multiply 3 on both sides of the equation to get the total amount of balloons.

So, 75 balloons is how many she can blow up in 3 hours.