At one point on the trip, the miles are recorded as 15,121 when the gas tank is 75% full. use a ratio equation to determine the miles per gallon the sedan averages. round your answer to the nearest whole number.

The most common size of a sedan tank is 18.5 gallons. So if it is 75% full, it contains 13.875 gallons of gas. If it recorded a mileage of 15,121 miles, mileage per gallon, therefore, is 1090 rounded off to the nearest whole number.

Given: Gas full tank of a sedan – 18.5 gallons

            75% full = 13.875 gallons

            Mileage using 13.875 gallons of fuel = 15,121 miles

The mileage per gallon computation using the ratio equation:

Ratio is 15121:13.875 or

            X/1= 15121/13.875

            13.875x = 15121

            X = 15121/13.875

            X =1089.80 or 1090 miles per gallon (rounded off)

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5