Final answer:
To find out how far Mr. Argo can go on 9 gallons of gas, create a proportion with the given data: 20 miles/2.5 gallons = m miles/9 gallons, which calculates to 72 miles.
Step-by-step explanation:
To determine how far Mr. Argo can go on 9 gallons of gas based on the provided information, we should set up a proportion. The original ratio is given as 20 miles for 2.5 gallons. The unknown we are solving for is the number of miles (m) Mr. Argo can travel on 9 gallons. The proportion can then be set up as follows:
- 20 miles / 2.5 gallons = m miles / 9 gallons
To solve this, cross-multiply and divide:
- (20 miles * 9 gallons) / 2.5 gallons = m miles
- m = 72 miles
Therefore, Mr. Argo can travel 72 miles on 9 gallons of gas.