Thursday

July 31, 2014

July 31, 2014

Posted by **Anonymous** on Tuesday, March 22, 2011 at 12:23am.

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.

- 8th grade math -
**Reiny**, Tuesday, March 22, 2011 at 8:13amI 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?

- 8th grade math -
**Anonymous**, Tuesday, May 3, 2011 at 11:18pmwhat is the y-coordinate of the point of intersection of the graphs of x+2y=-6 and 2x+y=24?

**Related Questions**

Geometry - A gallon of paint costs $20 and covers 465 square feet. Three coats ...

Geometry - a room is 18 feet long and 14 feet wide with walls 10 feet high. If ...

Algebra 1 - Please Help Me!! "Crown Molding' is a decorative strip of wood ...

Geometry - A gallon of paint costs $20 and covers 465 square feet. Three coats ...

algebra - john is preparing to paper the walls of his room, which has the shape ...

math problems - a room is 24 feet long,18 feet wide,and 9 feet high.how many ...

math - A room is 24 feet long, 18 feet wide, and 9 feet high. How many square ...

math - A school is soundproofing a band room with insulating tiles. The room is ...

geometry - brett is using wallpaper to decorate two walls of his bedrroom. each ...

Math - A room is 18 feet long, 14 feet wide , 8 feet high. find the cost of ...