will someone check my work on this problem? medal and fan given! :)
question
Suppose a and b vary inversely, and b = 8 when a = 6. Write a function that models the variation and find b when a = 30
my answer:
ab = k
6*8 = k = 48
ab = 48
a = 30, then
30*b = 48
b = 48/30 = 8/5 = 1.6

Question

will someone check my work on this problem? medal and fan given! :)
question
Suppose a and b vary inversely, and b = 8 when a = 6. Write a function that models the variation and find b when a = 30
my answer:
ab = k 
6*8 = k = 48 
ab = 48 
a = 30, then 
30*b = 48 
b = 48/30 = 8/5 = 1.6

hartnn · Answer

you're absolutely correct! :)

hartnn · Answer

the function is ab =48
b= 8/5 or 1.6 :)