3 years ago

Eighty percent of a roof, or 2800 square feet of the roof, has been re-shingled.

Mathematics

1 answer:

asambeis [7]3 years ago

8 0

Answer:

a) 35,000 sq ft

Step-by-step explanation:

x = total area

the question is: 80% of what number equals 2800

.8x = 2800

x = 2800/0.8

x = 3500

You might be interested in

PLEASE ANSWER ASAP! THANK YOU! SUPER EASY! Mrs. Davis is planning to put a circular rug in her living room. The circumference of

netineya [11]

Answer:

Part A) The diameter of the rug is $10\ ft$

Part B) The radius of the rug is $r=5\ ft$

Part C) The area of the rug is $78.5\ ft^{2}$

Step-by-step explanation:

Part A) Find the diameter of the rug

we know that

The circumference of a circle (circular rug) is equal to

$C=\pi D$

where

D is the diameter

we have

$C=31.4\ ft$

$\pi=3.14$

substitute the values and solve for D

$31.4=(3.14)D$

$D=31.4/(3.14)=10\ ft$

Part B) Find the radius of the rug

we know that

The radius of a circle (circular rug) is half the diameter

we have

$D=10\ ft$

$r=D/2$

substitute

$r=10/2=5\ ft$

part C) What is the area the rug is covering?

The area of the circle (circular rug) is equal to

$A=\pi r^{2}$

we have

$r=5\ ft$

$\pi=3.14$

substitute

$A=(3.14)(5)^{2}$

$A=78.5\ ft^{2}$

7 0

4 years ago

What is the value of x? ОА. 95° Ов. 1050 Ос. 75° OD. 35°

statuscvo [17]

C. 75

70+35+x=180
70+35=105
180-105=75

3 0

3 years ago

Read 2 more answers

Solve for u. U/-1 +-4=-1 U =

kherson [118]

Answer:

U = -3

Step-by-step explanation:

U/-1 +-4=-1

Add 4 to each side

U/-1 +-4+4=-1+4

U / -1 = 3

Multiply each side by -1

U / -1 * -1 = 3* -1

U = -3

3 0

3 years ago

An archaelogist in Turkey discovers a

AURORKA [14]

Answer:

I am condused too?//

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

At a restaurant there are 10 different dipping sauces, 3 are fatfree. If you randomly chose 3 different sauces what is the proba

wolverine [178]

Answer:

Step-by-step explanation:3 - 2 i think

8 0

3 years ago

Read 2 more answers