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nydimaria [60]
3 years ago
14

Find the value of x in the proportion 3/8= x/40

Mathematics
1 answer:
vladimir1956 [14]3 years ago
3 0

Answer:

<h2>x = 15</h2>

Step-by-step explanation:

<h3>3 / 8 = x / 40</h3><h3>x = 3 ×40 / 8</h3><h3>x = 120 / 8</h3><h3>x = 15</h3>

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Look in explanation

Step-by-step explanation:

I will assume that you're trying to solve for "x".

For number 1: 49+(5x+1) is a supplementary angle(180 degrees) so you can subtract 180-49 to get 131.

Now, 131 = 5x+1

        -1            -1

         130 = 5x

         /5      /5

Now, we isolate the x to get x=26.

Number 2: There is a supplementary angle as well so we can put 5x+12+6x+3=180.

Now, combine the like terms to get 11x+15=180 so we now isolate x.

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                                                               x=15

Now, try the rest and set the terms to 180.

5x+1+8+4x=180

2x+1+x-10=180

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CHECK YOU ANSWERS BELOW AFTER YOU HAVE ATTEMPED THE REST OF THE PROBLEMS.

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Step-by-step explanation:

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