Question

Draw and use a double number line diagram to model and solve the problem below.

The Williams family went to the beach during summer vacation. They traveled 459 miles and used a full tank of gas, which holds 17 gallons. If the total distance to their beach destination is 594 miles, how many gallons of gas will the Williams family need?

Answer 1

We can find the answer for this problem by using the rule of three:
459 miles---------------------------17 gallons594 miles--------------------------- x
x = (594 miles * 17 gallons) / 459 miles = 22 gallons.
The answer is they will need 22 gallons.