Question

y varies inversely as x, and y = 50 when x = 10. What is the value of y when x = 20?

100
25
10

Answer 1

y = k/x

50 = k/10
*10 *10

k = 500

y = 500/20

y = 25

Answer 2

oh thanks i though the answer was 100 O.o thanks for helping me out!