Mr Webster is buying an carpet for exercise room where the basement of the room is in the shape of rectangle. The length and width of room is 18 2/5 and 12 1/2 respectively . Find the total cost of the carpet of the price of carpet is 3 per square feet
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Answer:
Simplify the fraction of the width:
12\frac{1}{2}=\frac{25}{2}12
2
1
=
2
25
Using the formula for Area:
\begin{gathered}A=l*w\\l=\frac{A}{w}\end{gathered}
A=l∗w
l=
w
A
Substituting the known values:
\begin{gathered}l=\frac{230}{\frac{25}{2}}\\l=230*\frac{2}{25}\\l=\frac{460}{25}\\l=\frac{92}{5}\\l=18\frac{2}{5}\end{gathered}
l=
2
25
230
l=230∗
25
2
l=
25
460
l=
5
92
l=18
5
2
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