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Houa is moving and must rent a truck. There is an initial charge for the rental plus a fee per mile

driven. Let C represent the total cost of renting the truck when the truck is driven m miles. The
table below has select values showing the linear relationship between m and C. Determine how
much money Houa would be charged if she drove 2.5 miles with the rented truck.
m
2
3.5
8
C
50.00
53.75
65.00

1 Answer

4 votes

Final answer:

By calculating the fee per mile and the initial charge from the provided data, Houa would be charged $51.25 for driving 2.5 miles with the rented truck.

Step-by-step explanation:

To determine how much Houa would be charged for driving 2.5 miles with the rented truck, we need to understand the linear relationship between the miles driven (m) and the total cost (C). The information provided shows a linear pattern in cost relative to miles:

  • Driving 2 miles costs $50.00
  • Driving 3.5 miles costs $53.75
  • Driving 8 miles costs $65.00

From these data points, we can calculate the fee per mile by looking at the difference in cost over the difference in distance between any two points. For example, using the 2 miles and 3.5 miles data points:

Fee per mile = (Cost at 3.5 miles - Cost at 2 miles) / (3.5 miles - 2 miles)

Fee per mile = ($53.75 - $50.00) / (3.5 miles - 2 miles)

Fee per mile = $3.75 / 1.5 miles

Fee per mile = $2.50 per mile

To find the initial charge, we now subtract the cost of the miles driven from the total cost for any of the provided data points. Using the 2 miles data point:

Initial charge = Total cost at 2 miles - (Fee per mile × 2 miles)

Initial charge = $50.00 - ($2.50 per mile × 2 miles)

Initial charge = $50.00 - $5.00

Initial charge = $45.00

Now, to calculate the total cost for driving 2.5 miles, we use the initial charge plus the fee per mile for 2.5 miles:

Total cost for 2.5 miles = Initial charge + (Fee per mile × 2.5 miles)

Total cost for 2.5 miles = $45.00 + ($2.50 per mile × 2.5 miles)

Total cost for 2.5 miles = $45.00 + $6.25

Total cost for 2.5 miles = $51.25

Therefore, Houa would be charged $51.25 for driving 2.5 miles with the rented truck.

User Joel Worsham
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