8th grade math

There are three walls in Jordan’s living room. The three walls, shown here, are 12 feet, 9 feet and 10 feet wide, respectively. Each wall has a height of 8 feet with a 6-inch baseboard along the bottom. The largest of the three walls contains a window that measures 5 feet by 6 feet. Jordan plans to paint the three walls of his living room by mixing together some paint he already has, which includes white #2, magenta #3, red #4, yellow #5 and green #6. Jordan has decided to paint two of the walls a pale goldenrod and the third wall will be painted burnt umber.

Suppose that 1 gallon of paint is used to cover 400 sq feet. Jordan plans to apply four coats of the goldenrod paint mixture to the 12-foot wall and the 9-foot wall leaving only the window and baseboard unpainted. How many gallons of the goldenrod paint mixture will he need? Express your answer as a decimal to the nearest hundredth.

  1. 👍 0
  2. 👎 0
  3. 👁 48
asked by Anonymous
  1. I will ignore all the jibberish about paint colour names and simply use colour A for the large wall and colour B for the other walls

    area of large wall = 12(7.5) - 5(6) = 60 square feet
    area of other two walls = (9)(7.5) + 10(7.5) = 142.5 square feet

    he will need 60/240 or .25 gallon of colour A for the large wall, which would be 1 quart
    he will need 142.5/400 or .35625 gallons of colour B, so he needs 2 quarts of colour B

    It seems silly to ask for accuracy to the nearest hundredth in the number of gallons needed.
    Can you imagine walking into a paint store and asking for .356 of a gallon of paint?

    1. 👍 0
    2. 👎 0
    posted by Reiny
  2. what is the y-coordinate of the point of intersection of the graphs of x+2y=-6 and 2x+y=24?

    1. 👍 0
    2. 👎 0
    posted by Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. Geometry

    A gallon of paint costs $20 and covers 465 square feet. Three coats of paint are recommended for even coverage. The room to be painted is 12 feet high, 20 feet long, and 20 feet wide. Only 4 gallons of paint are left to paint the

    asked by Need Help on April 15, 2011
  2. algebra

    john is preparing to paper the walls of his room, which has the shape of a rectangular prism. The width is 14 feet, the length is 13 feet, and the height is 8 feet. What is the total surface area of the walls of his room?

    asked by Anonymous on May 8, 2012
  3. Algebra 1

    Please Help Me!! "Crown Molding' is a decorative strip of wood around the walls up by the ceiling of a room. How many linear feet of crown molding will Kentaro need for the 4 walls of his rectangular bedroom, which is 12 feet by

    asked by Taylor Leigh on April 23, 2012
  4. Algebra

    The amount of paint needed to cover the calls of a room varies jointly as the perimeter of the room and the height of the wall. If a room with a perimeter of 60 feet and 8-foot walls requires 4.8 quarts of paint, find the amount

    asked by Tracy on July 5, 2018
  5. Geometry

    a room is 18 feet long and 14 feet wide with walls 10 feet high. If one can of paint covers 450 square feet, how many cans of paint would be needed in order to paint the four walls?

    asked by Ana on April 18, 2010
  6. algebra

    a painter charged $320 to paint two walls that measure 12 feet by 9ft and two walls that measured 10 ft by 9 ft. The client asks him to return to paint two walls that measue 15 ft by 12 ft and two walls that measure 18.5 feet by

    asked by bobby on October 1, 2013
  7. math

    Marie's room was covered with new wallpaper at a cost of $2 per square foot. Two walls measured 10 feet by 8 feet and the other two walls were 12 feet by 8 feet. What was the total cost of the wallpaper?

    asked by Hailey9 on August 11, 2017
  8. Math

    I am trying to help my child with this problem and I have no idea what to do to solve this word problem. Paul used 1 1/4 gallons of paint to cover 3/8 of the walls in his living room. How many gallons of paint will Paul need to

    asked by Jason on January 15, 2016
  9. MATH

    Marco paints a wall and charges $20 as set up fee. He charges at least $60 per big wall and he for small walls he charges no more than $40 per wall.He has just completed painting either all big walls or small walls. His invoice

    asked by Anonymous on February 19, 2016
  10. Geometry

    the walls, floor, and ceiling of a room form a rectangular solid. The total surface are of the room is 992 square feet. The dimensions of the floor are 12 feet by 20 feet a. What is the lateral area of the room b. What is the

    asked by Jake Monroe on May 17, 2014

More Similar Questions