Rewrite the equation in the form y = k/x

xy = - 45

x = 15/y

2xy=9

what are the answers and how do i solve them?

Question

Mathematics

Rylan Saunders

10 June, 09:47

Rewrite the equation in the form y = k/x

xy = - 45

x = 15/y

2xy=9

what are the answers and how do i solve them?

+3

Answers (1)

Know the Answer?

Xiomara Daugherty · Answer 1

1.

xy=-45 (divide both sides by x)

xy:x = 45:x

y = 45:x

y = 45/x

2.

x=15/y (cross multiply)

xy = 15 (divide both sides by x)

y = 15/x

3.

2xy = 9 (divide both sides by 2x)

y = 9/2x

y = 4.5/x

Rewrite the equation in the form y = k/xxy = - 45x = 15/y2xy=9what are the answers and how do i solve them?

Rewrite the equation in the form y = k/x

xy = - 45

x = 15/y

2xy=9

what are the answers and how do i solve them?