Answer:
$60 per year
Explanation:
Calculation for how much money would you save each year
First step is to calculate for the cost of Changing the oil every 3,000 miles
Cost of Changing oil every 3,000 miles:
Cost = (15,000/3,000)*$30
Cost =5*$30
Cost = $150 per year
Second step is to calculate for the cost of Changing the oil every 5,000 miles
Cost of Changing oil every 5,000 miles:
Cost = (15,000/5,000)*$30
Cost =3*$30
Cost = $90 per year
Last step is to calculate how much money would you save each year using this formula
Savings =Cost of Changing oil every 3,000 miles-Cost of Changing oil every 5,000 miles
Let plug in the formula
Savings= $150 per year-$90 per year
Savung=$60 per year
Therefore the amount of money you would save each year will be $60 per year