Find the value of x so that the ratios are equivalent.
3:x and 12:40
X=
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10

Step-by-step explanation:

Divide both sides by 4

option 1

data plot with   3 dots over 33, 1 dot over 34, 2 dots over 35, no dot over 36, 1 dot over 37, 2 dots over 38, 4 dots over 39, and 2 dot over 40.