Question

LIn lines the bottom of her first pan with aluminum foil. The area of the rectangle piece of foil is 11 1/4 square inches. Its length is 4 1/2 inches what is the width of the foli.

Answer 1

Width of foil is $2\frac{1}{2}$ inches

Solution:

Given that area of the rectangle piece of foil is $11\frac{1}{4}$ square inches

Its length is $4\frac{1}{2}$ inches

To find: width of foil

The area of rectangle is given as:

To find the area of a rectangle, we multiply the length by the width

$\text{ area of rectangle}= length \times width$

Substituting the given values in above formula,

$11\frac{1}{4} = 4\frac{1}{2} \times width$

Let us solve above expression to find width

$\frac{4 \times 11 + 1}{4} = \frac{2 \times 4 + 1}{2} \times width\\\\\frac{45}{4} = \frac{9}{2} \times width\\\\width = \frac{45}{4} \times \frac{2}{9}\\\\width = \frac{5}{2} = 2\frac{1}{2}$

Therefore width of foil is $2\frac{1}{2}$ inches