Answer:
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor
In this problem
substitute the given values
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.
Paul: 140 + 12x
Jacklyn: 56 + 16x
Where x is how many practice sessions he had this season
"After how many more practices will Paul and Jacklyn have completed the same number of laps?"
This means what will x be if both equations are equal to each other
140 + 12x = 56 + 16x
Isolate x in one side by subtracting both sides by 12x
140 + 12x - 12x = 56 + 16x - 12x
140 = 56 + 4x
Subtract both sides by 56 to shift the 56 from the right side to the left side
140 - 56 = 56 - 56 + 4x
84 = 4x
Divide both sides by 4 to isolate x
84/4 = 4/4x
21 = x
x = 21
They'll have completed the same number of laps after 21 practices
Hope it helps :)
Branliest would be appreciated
Answer:
It must travel through a medium
Step-by-step explanation: Because I said so >:(