If y varies inversely as x and y=3 when x=8 what is x when y=4

Question

Mathematics

Cannon Hayden

14 November, 02:28

If y varies inversely as x and y=3 when x=8 what is x when y=4

+4

Answers (1)

Know the Answer?

Catalina Bates · Answer 1

x = 6

Step-by-step explanation:

y varies inversely as x

y = k * 1/x. {where k is a constant}

when y = 3, x = 8

Therefore 3 = k/8 and k is 24

y = 24/x

When y = 4,

4 = 24/x

4x = 24

(dividing both sides by 4)

x = 6