Mathematics, 08.04.2020 17:34 cbbentonam72

A rectangular wall with a length of 10x and width of 20 x has a rectangular doorway with a length of 5x and a width of 2x. What is the surface area of the wall?

Answers: 2

Show answers

Answers

Answer from: ltuthill

∴ The the surface area of the wall is $190x^{2} \ square\ unit$ .

Step-by-step explanation:

Given that,

The length of rectangular wall is 10x .

The width of rectangular wall is 20x.

The length of doorway is 5x.

The width of doorway is 2x.

and, we have to find the surface area of rectangular wall.

Now,

The length of rectangular wall is 10x .

The width of rectangular wall is 20x.

∴ Total surface area of a rectangular wall $= Length\ of\ wall\times Width\ of\ wall$

$= 10x\times 20x$

$200x^{2} \ square\ unit$

Total surface area of a rectangular wall is $200x^{2} \ square\ unit$ .

Again, The length of doorway is 5x.

The width of doorway is 2x.

∴Total surface area of doorway $=Lenght\ of\ doorway\times Width\ of\ doorway$

$=5x\times 2x$

$=10x^{2} \ square\ unit$

Total surface area of doorway is $10x^{2} \ square\ unit$ .

∴The remaining surface area of a rectangular wall is $200x^{2} -10x^{2}$

$=190x^{2} \ square\ unit$

∴ The the surface area of the wall is $190x^{2} \ square\ unit$ .

Answer from: Quest

The graph isn’t that clear

Answer from: Quest

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

Another question on Mathematics

Mathematics, 21.06.2019 18:30

How far could you drive on 50 gallons of gas

Answers: 2

Answer

Mathematics, 21.06.2019 19:00

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

Answers: 2

Answer

Mathematics, 21.06.2019 21:00

Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ¿cuantos kilogramos de fruta compro?

Answers: 2

Answer

Mathematics, 21.06.2019 22:20

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?

Answers: 1

Answer

You know the right answer?

A rectangular wall with a length of 10x and width of 20 x has a rectangular doorway with a length of...