Answered

2) If x varies inversely with y and x = 40 when y = 5, find
a) The equation of variation
b) The value of x when y = 25
c) The value of y when x = 400

Sagot :

LheLhengviz

Answer:

2. x=k/y

40=k/5

k=40(5)

k=200

a. k=xy

b. x=200/25

x= 8

c. 400=200/y

400y=200

y=200/400

y= 1/2