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DanielleElmas [232]
2 years ago
8

Luis and Victor were both trying to solve the equation 5x = 20. Luis multiplied both sides of the equation by the reciprocal of

5. Victor divided both sides of the equation by 5. Who solved the equation correctly?
A.
Only Luis

B.
Only Victor

C.
Both Luis and Victor

D.
Neither Luis or Victor
Mathematics
1 answer:
Kamila [148]2 years ago
7 0

Answer: B

Step-by-step explanation:

20 divided by 5 =4 and 5x4=20

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Let y = the distance between the top left corner and the bottom right corner

y^2 = 24^2 + 15^2

y^2 = 801

y = 3 * sqrt(89)

Now we can find x.

12^2 + x^2 = (3 * sqrt(89))^2

x^2 = 657

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Evaluate each expression using the variable replacements.
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Step-by-step explanation:

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15 blocks

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Answer:

A, B, & C

Step-by-step explanation:

A: -5x +12 = -12x - 12

    +12x        +12x

    7x + 12 = -12

         -12     -12

            7x = -24                 [Divide both sides by 7 to get x]

              x = -24/7

B: −5x + 12 = 5x + 12

   -5x            -5x

    -10x + 12 = 12

            -12     -12

            -10x = 0                   [Divide both sides by -10 to get x]

                 x = 0

C: −5x + 12 = 5x − 5

    -5x           -5x

    -10x + 12 = -5

            -12      -12

           -10x = -17                  [Divide both sides by -10 to get x]

               x = 17 / 10

D: −5x + 12 = −5x − 12

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