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Savatey [412]
3 years ago
13

The lengths of the sides of a triangle are in the extended ratio 3:7:8. The triangle’s perimeter is 72 in. What are the lengths

of the sides?
Mathematics
2 answers:
andrey2020 [161]3 years ago
5 0
This is simple. First we write the equation as:
3x+7x+8x = 72.
We now simplify terms to get:
18x=72
Divide and get
x=4.

Sadly, more work is needed. We now need to plug in the variables into the ratio
3*4=12
4*7=28
4*8=32
So the side lengths are 12 in., 28 in., and 32 in. respectively

Alina [70]3 years ago
4 0
Answer:


The sides of the triangle are :
<span>24cm,28cm</span> and <span>36cm</span>


Explanation:

The ration of lengths are: <span>6:7:9</span>

Let the sides be denoted as:
<span>6x,7x</span> and <span>9x</span>

The perimeter <span>=88cm</span>

<span>6x+7x+9x=88</span>

<span>22x=88</span>

<span>x = </span>\frac{88}{22}

<span>x=4</span>

The sides can be found as follows:
<span>6x=6×4=24cm</span>

<span>7x=7×4=28cm</span>

<span>9x=9×4=36c<span>m</span></span>

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Enter the number 46.1979 rounded to the nearest hundredth (two decimal places)
muminat

Answer:

It should be 46.20

Step-by-step explanation:

You're rounding to the nearest hundredth. So you have 46.1979 to start out with. Then you count 2 places so you end at the 1st 9. Well, behind the 9 is a 7 so you round up and get 20

6 0
1 year ago
45 points to answer this question
Mrac [35]

if a = b and b = c, then a = c.

In this case if y = - 7 and -7 = z then y = z  .................>(y = a, -7 = b and z = c)

Answer:  B)

transitive property of equality




7 0
3 years ago
Solve by elimination:
Pie

Answer:

B (5, 13)

Step-by-step explanation:

9x + 4y = 97

9x + 6y = 123

To solve by elimination, we want to <em>eliminate</em> a variable. To do this, we must make one variable cancel out.

First, we can see that both equations have 9x. To cancel out x, we must make <em>one</em> of the 9x's <em>negative</em>. To do this, multiply <em>each term</em> in the equation by -1.

-1(9x + 6y = 123)

-9x - 6y = -123

This is one of your equations. Set it up with your other given equation.

9x + 4y = 97

-9x - 6y = -123

Imagine this is one equation. Since every term is negative, you will be subtracting each term.

9x + 4y = 97

-9x - 6y = -123

___________

0x -2y = -26

-2y = -26

To isolate y further, divide both sides by -2.

y = 13

Now, to find x, plug y back into one of the original equations.

9x + 4(13) = 97

Multiply.

9x + 52 = 97

Subtract.

9x = 45

Divide.

x = 5

Check your answer by plugging both variables into the equation you have not used yet.

-9(5) - 6(13) = -123

-45 - 78 = -123

-123 = -123

Your answer is correct!

(5, 13)

Hope this helps!

6 0
3 years ago
a student is reading a fictional book at about 300 words per a minute. convert this rate to words per second
Harrizon [31]

300 words divided by 60 seconds would equals 5 words a second

hope this helps

6 0
3 years ago
Answer ASAP please, Will give brainliest.
nikdorinn [45]

Answer:

see below

Step-by-step explanation:

The measure of a minor arc is the same as the angle that forms it.

1. Since ∠GBJ = 90°, the answer is 90°.

2. ∠HBI = 180° - 151° = 29° so the answer is 29°.

3. ∠HBJ = 180° so the answer is 180°.

4. The reflex angle ∠GBI = 90 + 151 = 241° so the answer is 241°/

5. Since ∠GBJ = 90°, the reflex angle ∠GBJ = 360 - 90 = 270° so the answer is 270°.

6. ∠GBH = 180 - 90 = 90° so the reflex angle ∠GBH = 360 - 90 = 270° so the answer is 270°.

4 0
3 years ago
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