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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]

Respuesta :

irspow
[tex] 72.59/98=(10/3)(3/36)w [/tex]

[tex] 7259/9800=w(5/18) [/tex]

[tex] w=130662/49000 [/tex]

[tex] w=2'8" [/tex]

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

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