What is Katie's cost for the project?

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1 Answer
Oct 24, 2017

Total cost of the painting project for Katie = $850

Explanation:

Length ‘l’ = #11(3/4)’#
Breadth b = #9(1/2)’#

Total distance to be covered = perimeter of the top of the room
# = 2*l + 2 * b =( 2 * 11(3/4)) + (2 * 9(1/2)#

# = (2 * (47/4)) + (2 * (19/2))#

= (47/2) + 19 = 85/2 ‘#

Cost of painting per foot = $20

Cost of painting (85/2)’ = 20 * (85/2) = $850