we know that
Unit Rate is the ratio of two measurements in which the second term is \(1\)
by proportion
Find the number of miles a car drives with a gallon of gasoline
\(\frac{283}{12.3} \frac{miles}{gallons} =\frac{x}{1} \frac{miles}{gallon}\\ \\12.3*x=283\\ \\x=283/12.3\\ \\x=23\ miles\)
therefore
the unit rate is equal to \(23\frac{miles}{gallon}\)
The answer is
\(23\frac{miles}{gallon}\)
