Question

I varies inversely with x and x=3.25 when y=4.5 what is the value of the x when y=3.75

Answer 1

Y varies inversly as x, so: 

y = k/x, where k is the constant of proportionality, so: 

4.5 = k/3.25, so 

k = 4.5 x 3.25, so 

k = 14.625, and 

y = 14.625/x 

when y = 3.75, 

3.75 = 14.625/x, so 

x = 14.625/3.75, so 

x = 3.9

Answer:
B. 3.9