David should buy Car A because it covers more miles in one gallon than Car B
Step-by-step explanation:
Given
Distance traveled by Car A = [tex]d_A = 702\ miles[/tex]
Gallons used by Car A = [tex]g_A = 12[/tex]
Distance traveled by Car B = [tex]d_B = 873\ miles[/tex]
Gallons used by Car B = [tex]g_B = 15[/tex]
In order to find the distance traveled on one gallon, we will divide the total distance by number of gallons
So,
Distance traveled by Car A in one gallon = [tex]\frac{702}{12} =58.5\ miles\ per\ gallon[/tex]
Distance traveled by Car B in one gallon = [tex]\frac{873}{15} = 58.2\ miles\ per\ gallon[/tex]
We can see that Car A travels more distance in one gallon that is 58.5 miles per gallon
So,
David should buy Car A because it covers more miles in one gallon than Car B
Keywords: Fractions, Unit rate
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