santimuper1247 santimuper1247

18-12-2017
Mathematics

contestada

A direct variation exists between X and Y when x equals 4, y equals 3 What is the value of y when x equals 10

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mrklyczek mrklyczek

19-12-2017

Santi,

Direct Variation y = kx where k is the constant of variation.

Step 1: Find k
Step 2: Use k to find y

3 = k * 4
3/4 = k

Now that we have k, the DV is y = 3/4 * x
y = 3/4 * 10

3/4 * 10 = 3/4 * 10/1 = 30/4 = 15/2 or 7.5

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