an 8 by 18 ft wall has three 4 by 5 ft windows.the area of the three windows is what percent of the area of the entire wall (including the windows)?

Answers

Answer 1

Answer:

Percentage of area of the three windows of the area of entire wall = 41.67%

Step-by-step explanation:

To find the percentage of area of the three window of the area of entire wall, we will need to find the area of the window (Length*breath) as well as the area of the entire wall (length*breath).

Area of the window = 4ft * 5ft = 20ft²

Area of three windows = Area of the window * 3

Area of the three windows = 20ft² * 3

Area of the three windows = 60ft²

Area of the entire wall = 8ft * 18ft

Area of the entire wall = 144ft²

Percentage of area of the three windows of the area of entire wall = area of the three windows / area of the entire wall * 100

= 60ft²/144ft² * 100

= 41.67%

Answer 2

Answer: area of windows = (3×4×5)
= 60
area of wall = 8×18
= 144
=(60÷144)×100
=0.4167 × 100
=41. 67% or
=42 %

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What is the greatest common factor of 90 and 15
I need help asap for this question

(x+12)^2=1

solve the equation above

Answers

Answer:

its -11

Step-by-step explanation:

(-11 + 12) = 1

1^2=1

so x equals -11

i hope i helped

132 soap dispensers 23 percent were contaminated, how many were contaminated?

Answers

40.36 were contaminated

40.36 :D (were contaminated)

The diameter of a cylinder is 3yd the height is 8yd

Answers

Answer:

volume= 56.55 yds

Step-by-step explanation:

If you're looking for the volume, the formula is $V=\pi r^(2) h$ .

Diameter is two times the radius (radius is half of the diameter) so the radius of the cylinder would be 1.5 yds.

After you've gotten that information, plug those values into the formula.

$V=\pi 1.5^(2) 8$

Solve 1.5^2 first. Then multiply that value by pi. Then multiply that value by the height which is 8yds.

Volume=56.55yds rounded to the nearest hunderedth.

Jill is making lemonade. The original concentration was 25 mL of concentrate to 2 L of water. People found that too strong so she decreased the concentration to 20 mL of concentrate to 2 L of water. By what percentage did she decrease the concentrate?A) 2%
B) 3%
C) 5%
D) 20%

Answers

100%= 25mls

20/25 x 100 = 80%

100%-80%= 20%

Answer:

Step-by-step explanation:

The answer is D)20%

A certain type of bamboo plant grows 1.2 feet in 1 day at that rate how many feet could the plant grow in 0.5 day

Answers

in .5 day, since .5 is half of one day , the bamboo will grow only .5× more so...
1.2÷5 = 0.6ft

The given bamboo can grow 0.6 feet in five days.

Ratio and Proportion

You can use the provided rate to calculate how many feet the bamboo plant could grow in 0.5 days. You can set up a proportion to determine the growth in 0.5 days if the plant grows 1.2 feet in one day.

So we can have 1.2 * 0.5 = x to represent the growth in 0.5 days.

x = 1.2 * 0.5

x = 6.0

As a result, at the specified rate, the bamboo plant might grow 0.6 feet in 0.5 days.

Learn more on ratio and proportion here: brainly.com/question/29774220

#SPJ3

Why can't the product of two digit numbers ever be two digits

Answers

im pretty sure it can. 20 +20 = 40. if that helps...

no because multiply 90 * 20=1800 that is 4 digits
90*3=270
6*3=18

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