I encountered this question before. It lacks pertinent
information.
Amira is painting a rectangular banner 2 ¼ yards wide on a
wall in the cafeteria. The banner will have a blue background. Amira has enough
blue paint to cover the 1 ½ square yards of wall.
a)
Find the height of the banner if Amira uses all
of the blue paint. Show work.
b)
The school colors are blue and yellow, so if
Amira wants to add yellow rectangles on the left and right sides of the blue
rectangle. The yellow rectangles will each be 3/4 yard wide and the same height
as the blue rectangle. What will be the total area of the two yellow
rectangles?
Area of a rectangle = length * width
Area using the blue paint = 1 ½ square yards.
Height = 1 ½ square yards / 2 ¼ yards or 1.5 sq. yds / 2.25 yd = 0.666 yd or 2/3 yd
1 Yellow rectangle: width = ¾ yards ; length = 2/3 yards
Area of yellow rectangle = ¾ yds * 2/3 yds = 6/12 or ½ square
yards
Area of the 2 yellow rectangles = ½ square yard * 2 = 1
square yard.
