Jerry has a large car which holds 22 gallons of fuel and gets 20 miles per gallon. Kate has a smaller car which holds 16.5 gallons of fuel and gets 30 miles per gallon. If both cars have a full tank of fuel now and drive the same distance, in how many miles will the remaining fuel in each tank be the same?Choose 1 answer:(A) 320(B) 325(C) 330(D) 335
Q. Jerry has a large car which holds 22 gallons of fuel and gets 20 miles per gallon. Kate has a smaller car which holds 16.5 gallons of fuel and gets 30 miles per gallon. If both cars have a full tank of fuel now and drive the same distance, in how many miles will the remaining fuel in each tank be the same?Choose 1 answer:(A) 320(B) 325(C) 330(D) 335
Calculate Total Distance: First, let's calculate the total distance each car can travel on a full tank.For Jerry's car: Total distance = Tank capacity ∗ Mileage per gallon= 22 gallons ∗20 miles/gallon= 440 miles
Set Up Equation: For Kate's car: Total distance = Tank capacity ∗ Mileage per gallon= 16.5 gallons ∗30 miles/gallon= 495 miles
Clear Fractions: Now, let's set up an equation to find the distance at which the remaining fuel in both tanks will be the same. Let x be the distance driven by both cars. Jerry's car will have used 20x gallons, and Kate's car will have used 30x gallons. The remaining fuel in each car's tank will be their initial capacity minus the fuel used.For Jerry's car: Remaining fuel = 22−20xFor Kate's car: Remaining fuel = 16.5−30x
Distribute 60: We want to find the distance x where the remaining fuel is the same for both cars:22−20x=16.5−30xTo solve for x, we'll first clear the fractions by finding a common denominator, which is 60 (the least common multiple of 20 and 30).Multiplying both sides by 60 gives us:60∗(22−20x)=60∗(16.5−30x)
Isolate x: Now, distribute the 60 on both sides of the equation:60×22−3×x=60×16.5−2×x1320−3×x=990−2×xTo isolate x, we'll move the terms involving x to one side and the constant terms to the other side:1320−990=3×x−2×x330=x
Final Result: We found that x=330 miles, which means that after driving 330 miles, the remaining fuel in both Jerry's and Kate's cars will be the same.
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