Solve for x 3+5x=18

Mathematics

2 answers:

Nikitich [7]3 years ago

7 0

Answer:

x=3

Step-by-step explanation:

e-lub [12.9K]3 years ago

6 0

Working:
3+5x=18
5x=15
x=3

So the answer is x=3

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14 points, I need an answer ASAP!!

Jet001 [13]

Hey there,

Your question states: <span>Part A-Find the PERIMETER of the outside edges of the frame.

You will do 5+5+7+7 and you will get 24.

Your correct answer would be 24 ft
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Your question states: </span><span>Find the AREA of the inside of the frame where the picture would belong and the area of the entire frame using the outside values. So I will basically do everything I did for (Part A) but I will do 25 x 35 and this would give me 875.

The area of the frame above would be 875 ft.
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Your question states: </span><span>If the area of the frame was 64 inches², what would be 2 possible sets of dimensions that could be used to make a frame with that area?

You would do 64/4 because this is a square and a square has 4 sides. So I will do 64/4 and I will get 16.

16 will be your correct answer.
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Your question states: </span><span>The frame is being enlarged to hang on a gallery wall. Using the scale factor of 1in=2.5ft., give the new dimensions of the outside edges of the frame.

</span>So if each each equals 2.5. I will do 2.5 x 5 and that will give me 12.5. I will also do the same on the other side because this is a square.So that means I will do 12.5+12.5 and I will get 25. Now for the number 7, I will do 7 x 2.5 and that will give me 17.5 but sense its a square I will do the same on the other side and I will get 35. So then I will add 25+35 and I will get 60.

The perimeter of the frame would be 60 ft.
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Hope this helps your brain.

~Jurgen

4 0

4 years ago

Read 2 more answers

Annie estimates that the height of a bookcase is 78. 25 in. The actual height is 75. 50 in. To the nearest tenth of a percent, w

pav-90 [236]

The error percentage is 4.13%.

<h2>Error percentage</h2>

The amount of mistakes is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

Given

Annie estimates that the height of a bookcase is 78.25 in.

The actual height is 75.50 in.

The error percentage.

<h3>How to find the error percentage?</h3>

We know the formula for the error percentage.

$\rm \% Error = \dfrac{Measured \ value- Actual\ value}{Actual\ value} * 100\\\\ \% Error = \dfrac{78.25 - 75.50}{78.75}*100\\\\ \% Error = \dfrac{3.25}{78.75}*100\\\\ \% Error = 0.0413*100\\\\ \% Error = 4.13 \%$