roll - down shutters are more expensive than plywood shutters. it can cost between $30 and $55 per square…

roll - down shutters are more expensive than plywood shutters. it can cost between $30 and $55 per square foot to cover a window with a roll - down shutter. answer both questions below about the cost of roll - down shutters. if a roll - down shutter costs $40 per square foot, how much will it cost to cover a window that is 3 feet wide and 4 feet high? if it costs $12 to cover the same window with a plywood shutter, how much more does the roll - down shutter cost?

roll - down shutters are more expensive than plywood shutters. it can cost between $30 and $55 per square foot to cover a window with a roll - down shutter. answer both questions below about the cost of roll - down shutters. if a roll - down shutter costs $40 per square foot, how much will it cost to cover a window that is 3 feet wide and 4 feet high? if it costs $12 to cover the same window with a plywood shutter, how much more does the roll - down shutter cost?

Answer

Explanation:

Step1: Calculate window area

The area of a rectangle is $A = l\times w$. Here, $l = 4$ feet and $w = 3$ feet, so $A=4\times3 = 12$ square - feet.

Step2: Calculate cost of roll - down shutter

If it costs $40$ per square foot and the area is 12 square feet, then the cost $C_{roll - down}=40\times12=480$ dollars.

Step3: Calculate the price difference

The cost of the roll - down shutter is $480$ dollars and the cost of the plywood shutter is $12$ dollars. The difference $\Delta C=C_{roll - down}-12=480 - 12=468$ dollars.

Answer:

  1. $480$
  2. $468$