# If z varies inversely as w, and z= 20 when w= 0.5, how do you find z when w= 30?

##### 1 Answer

Apr 4, 2018

#### Answer:

#### Explanation:

#z ∝ 1/w#

#z = k/w# ……[1]

Where

When

#z = k/w#

#20 = k/0.5#

#k = 20 xx 0.5#

#color(blue)k = 10#

When

Equation [1] will be

#z = k/w = 10/30 = 1/3#