Question

4. Sam's parents are teachers who commute 45 miles roundtrip to work 5 2 days a week. His parents spend $38 on gasoline each week. Gasoline cost $2.48 per gallon. Which of the following statements is true for this problem ? Sam's parents spend $0.17 per mile on gasoline II. Sam's parents buy 15.32 gallons of gasoline per week. III. Sam's parents car gets 5.92 miles per gallon of gasoline

Answer 1

Answer:

The correct option is d. (i) and (ii)

Step-by-step explanation:

The total miles covered per day = 45

No of commuting days in a week = 5

Total miles in a week = 45 * 5 = 225

The total amount spent on gasoline = $ 38

Cost of gasoline per gallon = $ 2.48

The number of gallons consumed per week = $\frac{38}{2.48}$ = 15.32 gallons of gasoline per week.

This confirms (ii) statement

The amount spend on gasoline per mile = $\frac{38}{225}$ = $0.17

This confirms (i) statement

The number of miles per gallon of gasoline = $\frac{225}{15.32}$ = 14.68 miles

The statement (iii) is false.