Question

PLEASEEE HELLPPPP

Mr. Lee is retiling his pantry floor. His pantry measures 4½ feet by 6½ feet. Each tile he plans to use measures ½ foot by ½ foot.​

Answer 1

117 tiles

Explanation:

Area of rectangle = length * width

To find the number of tiles divide the area of pantry floor by the area of a tile.

Convert mixed fraction to improper fraction.

`\sf 4(1)/(2)=(9)/(2)\\\\\\6(1)/(2)=(13)/(2)`

`\sf \boxed{\text{\bf Number of tiles = $(Area \ of \ floor)/(area \ of \ a \ tile)$}}`

`\sf = \left((9)/(2)*(13)/(2)\right ) \ / \left((1)/(2)*(1)/(2)\right)\\\\\\= \left((117)/(4)\right) \ / \left((1)/(4)\right)\\\\\\`

Use KCF method.

• Keep the first fraction.
• Change division to multiplication.
• Flip the second fraction.

`\sf =(117)/(4)*(4)/(1)\\\\= 117`