Yosef's average weekly fuel cost would be $1479.3.
The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
The unitary method is a method in which you find the value of a unit and then the value of a required number of units.
Yosef drove 10,750 miles last year. His truck's fuel efficiency averages 21 mpg.
Karla used 10750/21 = 511.9 gallons to drive 10750 miles.
The average cost of gas last year was $2.89 per gallon.
Therefore, Yosef's average weekly fuel cost would be
2.89 x 511.9 = $1479.3
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