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Gemiola [76]
3 years ago
13

In rectangle KLMN, KM =6x + 16, and LM =49. find the value of x

Mathematics
1 answer:
viktelen [127]3 years ago
7 0
The rectangle is a figure with opposite sites equal in length.
Also, the diagonals in a rectangle have equal length.
<span>KM and LN are the diagonals and they are equal by definition.
So, we can write the equation: KM=LM
6x+16=49
6x=49-16
6x=33
x=5.5
</span>
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If the perimeter of an equilateral triangle is 24cm, find the length of it's side​
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Helpp me pleasee ╹◡╹
SashulF [63]

Answer:

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Step-by-step explanation:

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IRINA_888 [86]

Answer:

No, Matt did not solve the equation correctly

Correct Answer: x = 8

Step-by-step explanation:

4(x + 2) = 30

Step 1: Distribute

4x + 2 = 30      =>     This is his mistake, he should completely distribute 4    

                                  to x and 2

Step 2: Subtract 2 from both sides/Isolate x

4x = 28           =>      This part is done correctly, but wrong because of Step 1

Step 3: Divide both sides by 4

x = 7                =>      This is correct, but again, he messed up on Step 1

<h3>Let's find the correct answer to this equation:</h3><h3>4(x +2) = 30</h3>

Step 1: Distribute

Remember to distribute 4 to all terms in the parenthesis.

4(x + 2) = 4(x) + 4(2)

            = 4x + 8

4x + 8 = 30

Step 2: Subtract 8 from both sides/Isolate x

Move all the terms that do not belong to x to the other side. We can do this by subtracting 8 from both sides  => (opposite operation of adding 8)

4x + 8 = 30

4x = 30 - 8

4x = 32

Step 3: Divide both sides by 4/Isolate x

Now we want x by itself. Since x is being multiplied by 4, we have to use the opposite operation, dividing by 4, to have x on one side by itself

4x = 32

4(x) = 32

x = 32 ÷ 4

x = 8

-Chetan K

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2 years ago
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