Answer: length = 24 ft
Width = 8 ft
Step-by-step explanation:
Let L represent the length of the barn.
Let W represent the width of the barn.
The area of a rectangular wall of a barn is 192 sq. Ft. This means that
LW = 192- - - - - - - - - - - - - - -1
It's length is 8 ft longer than twice it's width. This means that
L = 2W + 8
Substituting L = 2W + 8 into equation 1, it becomes
W(2W + 8) = 192
2W² + 8W = 192
2W² + 8W - 192 = 0
Dividing through by 2, it becomes
W² + 4W - 96 = 0
W² + 12W - 8W - 96 = 0
W(W + 12) - 8(W + 12) = 0
(W - 8)(W + 12) = 0
W = 8 or W = - 12
Since the width cannot be negative, then W = 8
L = 192/W = 192/8
L = 24
The speed of Maglev train is 267 miles per hour.
Step-by-step explanation:
Given,
Speed of Maglev train = 430 kilometers per hour
We know that;
1 kilometer = 0.62 miles
Therefore,
430 kilometers = 0.62*430
430 kilometers = 266.6 miles
Rounding off to nearest whole number
430 kilometers = 267 miles
The speed of Maglev train is 267 miles per hour.
Keywords: Speed, conversion
Learn more about conversion at:
#LearnwithBrainly
Answer:
Point Y is the center of the circle that passes through points D, E, and F.
Step-by-step explanation:
I’m guessing the questions is how many pages she can read in an hour?
the answer for that is
• 36.75
hope this helps x
Choose any 2 points from the table:
<span>*10----------------------$25
*15----------------------$35
*20----------------------$45
*25----------------------$55
and find the slope of the line. Supposing we focus on
</span>*15----------------------$35
*20----------------------$45
then:
$45-$35 $10
slope = m = ------------- = ---------- = $2/mile
20-15 5
