Question

Kevin plans to put concrete on a rectangular portion of his driveway. The portion is 10 feet long and 3 inches high. The price of concrete is $98 per cubic yard. The total cost of the concrete Kevin needs is $72.59. Which of the following is closest to the width of the portion of the driveway on which Kevin plans to put concrete?

[1 foot = 12 inches; 1 yard = 3 feet]

Answer 1

`72.59/98=(10/3)(3/36)w`


`7259/9800=w(5/18)`


`w=130662/49000`


`w=2'8`

So it is closer to a yard than to a foot.