Question

Which of the following equations has a different value of k than the others?
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1 point
k - 1/4 = 1/2
k + 0.3 = 1.05
k + 1/4 = 1/2
k - 0.33 = 0.42

Answer 1

Solve each for k:

1) k - 1/4 = 1/2 → k = 1/2 + 1/4 = 3/4 = 0.75
2) k + 0.3 = 1.05 → k = 1.05 − 0.3 = 0.75
3) k + 1/4 = 1/2 → k = 1/2 − 1/4 = 1/4 = 0.25
4) k - 0.33 = 0.42 → k = 0.42 + 0.33 = 0.75

Equation 3 (k + 1/4 = 1/2) gives a different k (0.25).