Metric countries rate the fuel efficiency of a car by the number of liters of gasoline required to drive 100 kilometers. If a car takes 12 liters per 100 kilometers, what is its efficiency in miles per gallon? Use the conversions 1gal = 3.7854 L and 1mile = 1.6 km.

Step-by-step explanation:

Metric countries rate the fuel efficiency of a car by the number of liters of gasoline required to drive 100 kilometers. If a car takes 12 liters per 100 kilometers, what is its efficiency in miles per gallon? Use the conversions 1gal = 3.7854 L and 1mile = 1.6 km.

ans 23.7

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116