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3 years ago

Solve for x ? I don’t understood

Mathematics

2 answers:

mina [271]3 years ago

8 0

Answer:

x=8

Step-by-step explanation:

9x-25=5x+7 (set the equations equal to each other)

-5x -5x (put variables on one side)

4x-25=7

+25 +25 (get variables alone)

4x=32

divide it all by 4x

4/4=x

32/4 =8

therefore x=8

kvasek [131]3 years ago

3 0

Answer:

x=8

Step-by-step explanation:

In this parallelogram, the opposite sides are equal

PN = LM

5x+7 = 9x-25

Subtract 5x from each side

5x-5x+7 = 9x-5x -25

7 = 4x-25

Add 25 to each side

7+25 = 4x-25+25

32 = 4x

Divide each side by 4

32/4 = 4x/4

8 =x

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3 years ago

Identify the values of the variables. Give your answers in the simplest radical form.

Lena [83]

Answer/Step-by-step explanation:

✔️Find k:

Reference angle = 60°

Hypotenuse = k

Opposite = 9

Therefore, using trigonometric ratio, we have:

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✔️Find f:

Reference angle = 60°

Opposite = 9

Adjacent = f

Therefore, using trigonometric ratio, we have:

$tan(60) = \frac{9}{f}$

Multiply both sides by f

$f*tan(60) = 9$

Divide both sides by tan(60)

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3 years ago

Rick says to find 2x5, he can use counting by 5s: 5,10,15,20,25. Explain what he did wrong.

Helga [31]

I mean he did everything right except he kept going past 5x2. I think that's the only mistake.

Hope I helped! :) (would you mind giving Brainliest answer? I'm trying to increase my title and I would really appreciate it!)

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4 years ago

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ExtremeBDS [4]

Answer:

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Step-by-step explanation:

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3 years ago

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serg [7]

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3 years ago