mimecraftninja1
mimecraftninja1 mimecraftninja1
  • 02-08-2016
  • Mathematics
contestada

Santana is plotting points on a graph. The ratio of y-value to x-value is 3 to 4 for each point. What will be the x-value of a point with a y-value of 12?

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bobtheminion
bobtheminion bobtheminion
  • 03-08-2016
y:x = 3:4, so 12:x = 3:4 . Multiply each side of the ratio to get x = 16.
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MsEHolt MsEHolt
  • 04-02-2019

Answer:

16

Step-by-step explanation:

The ratio of y-value to x-value is 3 to 4, or 3/4.

For the ratio of the point with a y-value of 12, we have 12/x.

This gives us the proportion

3/4 = 12/x

Cross multiplying, we have

3(x) = 4(12)

3x = 48

Divide both sides by 3:

3x/3 = 48/3

x = 16

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