Question

1. the value of y varies inversely with x. what is the value of k when y = 12.7 and x = 8?

k = 1.5875
k = 0.6299
k = 101.6
k = 20.7

Explanation:

Step1: Recall inverse variation formula

Inverse variation: \( y = \frac{k}{x} \), so \( k = yx \)

Step2: Substitute values

\( k = 12.7 \times 8 = 101.6 \)

Answer:

k = 101.6