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2 years ago

12

A rectangular room is 15 feet long and 10 feet wide. A scale drawing of the room has a width of 5 inches. What is the length of

the room in the drawing?

1 answer:

snow_tiger [21]2 years ago

4 0

Answer:

7.5

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B3-4x%7D%20%3D%20%5Cfrac%7B5%7D%7B2x%2B.25%7D" id="TexFormula1" title="\frac{8

BlackZzzverrR [31]

Step-by-step explanation:

$\frac{8}{3 - 4x} = \frac{5}{2x + .25} \\ 8(2x + .25) = 5(3 - 4x) \\ 16x + 2 = 15 - 20x \\ 16x + 20x = 15 - 2 \\ 36x = 13 \\ x = \frac{13}{36}$

7 0

3 years ago

A recipe takes 90 minutes

Paha777 [63]

Answer:

Answer

Find out the how many minutes are spent preparing.

To proof

As given

A recipe takes 90 minutes to make.

25 percent of the time is spent preparing the ingredients.

25% is written in the decimal form

= 0.25

Time spent in preparing = 0.25 × 90

= 22.5 minutes

Therefore the 22.5 minutes are spent preparing the ingredients.

Hence proved

Step-by-step explanation:

4 0

2 years ago

A home builder wants to decorate the post at the bottom of a stairway. One way to do this is to glue a square-based pyramid to t

AysviL [449]

We have been given net of a pyramid. We are asked to find the total surface area of the pyramid.

The surface area of the pyramid will be area of base plus area of 4 triangular sides.

We have been given that base of pyramid is square, so area of base will be square of base side.

$\text{Area of base}=(\text{10 in})^2=100\text{ in}^2$

Let us find area of one triangular side.

$\text{Area of triangle}=\frac{1}{2}\times \text{Base}\times\text{Height}$

$\text{Area of triangle}=\frac{1}{2}\times \text{10 in}\times\text{6 in}$

$\text{Area of triangle}=\text{5 in}\times\text{6 in}$

$\text{Area of triangle}=30\text{ in}^2$

Now we will multiply area of one triangular face by 4 to find area of 4 triangular faces.

$\text{Area of 4 triangular faces}=4\times 30\text{ in}^2$

$\text{Area of 4 triangular faces}=120\text{ in}^2$

Total surface area of pyramid would be area of base plus area of 4 triangular faces.

$\text{Total surface area of pyramid}=100\text{ in}^2+120\text{ in}^2$

$\text{Total surface area of pyramid}=220\text{ in}^2$

Therefore, 220 square inches of copper sheet are needed to make one pyramid.

4 0

3 years ago

Please Help ;-;" :Mr. Gordon’s science class is studying blood types. The table below shows the probability that a person living

Illusion [34]

Answer:

The probability of 3 students having blood type A is 1.23 , having blood type B is 0.3 and having blood type AB is 0.12

Step-by-step explanation:

Multiple the total selected nuber with the types .

7 0

3 years ago

Read 2 more answers

Missing angle trig (inverse) 10th geometry HELP ASAP

USPshnik [31]

Answer:

33. B

34. D

35. D

36. A

Step-by-step explanation:

All these questions require is a calculator :). For question 35, all you want to put in is arccos(0.8192) and make sure your calculator is in degree mode. For 36, all you want to put in is arctan(0.3839). For 34, all you want to put in is arcsin(0.6018). For 33, all you want to put in is arcsin(0.6561).

7 0

3 years ago