Answer:
The truck can travel 1960 miles on two full tanks of diesel fuel. The total cost of filling the two tanks is $ 1111.88 .
Step-by-step explanation:
Given:
Average diesel fuel mileage of truck = 7 mpg
Amount of fuel held by a tank of truck = 140 gallons
Cost of diesel fuel per gallon= $3.971
Since the truck has 2 tanks for fuel,
Total amount of fuel filled in the truck = [tex]140\times 2=280\ gallons[/tex]
∴ The distance the truck can travel with 280 gallons of fuel = [tex]mileage \times fuel(in\ gallons) = 7\times 280 = 1960\ miles[/tex]
∴Cost of 280 gallons of fuel = [tex]\textrm{unit rate of fuel in \$} \times 280\ gallons= \$3.971\times 280 =\$ 1111.88[/tex]
A=1960 miles
B=$ 1111.88
