Question

A rectangle tabletop has a length of 4 3/4 feet and an area of 11 7/8 feet square feet. What is the width of the tabletop?

Answer 1

Use the formula for the area of a rectangle to find the width.


`A = wl\ \ \ \ \ (plug\ in\ values) \\ 11(7)/(8) = 4(3)/(4)l\ (put\ into\ improper\ fractions)\\ (95)/(8)=(38)/(8)l\ \ \ (multiply\ by\ 8) \\ 95=38l\ \ \ (divide\ by\ 19)\\ 5 = 2l\ \ \ \ \ \ (divide\ by\ 2)\\ (5)/(2)=l\ \ \ \ \ \ \ (put\ as\ mixed\ number) \\\\ \boxed{l=2(1)/(2)\ ft}`