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cestrela7 [59]
3 years ago
13

The sum of a number x and 4 equals 12

Mathematics
1 answer:
Nataliya [291]3 years ago
6 0
x+4=12\ \ \ \ |subtract\ 4\ from\ both\ sides\\\\\boxed{x=8}
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3. The diagonal of a rectangular field is 169 m. Ifthe ratio of the length to the width is 12:5, find the: (a) (b) dimensions; p
Kazeer [188]

The dimensions of the rectangle are length 156 m and a width of 65m, and a perimeter P = 442m

<h3>How to find the dimensions of the rectangle?</h3>

For a rectangle of length L and width W, the diagonal is:

D = \sqrt{L^2 + W^2}

Here we know that the diagonal is 169m.

And the ratio of the length to the width is 12:5

This means that:

W = (5/12)*L

Replacing all that in the diagonal equation:

169 = \sqrt{((5/12)^2*L^2 + L^2} \\\\169^2 = (25/144)*L^2 + L^2 = ( 25/144 + 1)*L^2\\\\\frac{169}{\sqrt{25/144 + 1} } = L = 156

So the length is 156 meters, and the width is:

W = (5/12)*156 m = 65m

Finally, the perimeter is:

P = 2*(L + W) = 2*(156 m + 65m) = 442m

If you want to learn more about rectangles:

brainly.com/question/17297081

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8 0
2 years ago
For which of the following is x=-5 a soulution? select all that apply​
victus00 [196]

Answer:

The answer are B and C

Step-by-step explanation:

-5² + 50 = 25

 |2 x 5| = 10

6 0
3 years ago
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How do you solve the equation 5x= 1 2/3
disa [49]
I hope it helps you get it right

3 0
3 years ago
How do you send a picture for answering a question.
Nina [5.8K]
You have to upload it from your computer before you press "ADD YOUR ANSWER"
6 0
3 years ago
Least to greatest !?
Bad White [126]
The lengths are \frac{5}{6} \frac{5}{12} and \frac{1}{3}
finding the LCM we get
\frac{10,5,4}{12}
arranging them 
 \frac{1}{3} \frac{5}{12} and \frac{5}{6}
6 0
3 years ago
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