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.
Answer:
Step-by-step explanation:
5x+4y=-30 ....(1)
3x – 9y=-18....(2)
divid (2) by : 3
x -3y = -6 so x = 3y - 6....(*)
put this value for x in (1) : 5(3y - 6 ) +4y = - 30
15y - 30 +4y = - 30
19y = 0 so : y = 0 put this value in (*) : x = 3(0) - 6 .... x = - 6
Dvshshanenes. She bejaja Baka w
Answer:
B is the correct answer
Step-by-step explanation:
Let’s write the equation for Tim according to the question, that is t = 14h
Now for sheri, looking at the table, we can see that in two hours, he sells 14 tickets . This means that he sells at an average rate of 7 tickets per hour
Modeling his selling rate, with t being the number of tickets and h being the number of hours, we have;
t = 7h
Tim’s rate is t/h = 14
While sheri’s rate is t/h = 7
We can see that Tim’s rate is double Sheri’s rate
Answer:
a. What is the probability that the cost will be more than $450?
We are supposed to find P(x > 450)
Formula :
Refer the z table :
P(z<0.9431)=0.8264
P(z> 0.9431)=1-P(z<0.9431)=1- 0.8264= 0.1736
Hence the probability that the cost will be more than $450 is 0.1736
b)What is the probability that the cost will be less than $250?
We are supposed to find P(x<250)
Formula :
Refer the z table :
P(z<-1.3295)=0.0934
Hence the probability that the cost will be less than $250 is 0.0934
c)What is the probability that the cost will be between $250 and $450?
P(250<z<450)=P(z<450)-P(z<250) = 0.8264 - 0.0934 =0.733
Hence the probability that the cost will be between $250 and $450 is 0.733
d) If the cost for your car repair is in the lower 5% of automobile repair charges, what is your cost?
p = 0.05
refer the z table
z = -1.65
Formula :
Hence If the cost for your car repair is in the lower 5% of automobile repair charges, so, cost is $221.8