Question

The cost of sealing the driveway a company charges is directly proportional to the area of the driveway. If the company charged Parcels $250 for their driveway of area 1200 square feet, how much do their neighbors, the Smiths, need to pay for the same company to seal their driveway of area 1530 square feet?"

a. $320
b. $315
c. $280
d. $275

Answer 1

Yhe Smiths need to pay $320 for the same company to seal their driveway of area 1530 square feet. The correct option is option A.

The cost for the Smiths' driveway as x.

Cost for Parcels' driveway / Area of Parcels' driveway = Cost for Smiths' driveway / Area of Smiths' driveway

$250 / 1200 sq ft = x / 1530 sq ft

To solve for x, we can cross-multiply and then divide:

x = ($250 / 1200 sq ft) × 1530 sq ft

x = $320

Therefore, the Smiths need to pay $320 for the same company to seal their driveway of area 1530 square feet.