SOLUTION: Find the number of pairs of natural number a and b which satisfy 1/a + 2/b = 1/18 where b is an odd natural number less than 80 ??
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Question 977076: Find the number of pairs of natural number a and b which satisfy 1/a + 2/b = 1/18 where b is an odd natural number less than 80 ??
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Find the number of pairs of natural number a and b which satisfy 1/a + 2/b = 1/18 where b is an odd natural number less than 80 ??
+ =
multiply equation by 18ab, cancel the denominators, we have
18b + 36a = ab
18b - ab = -36a
Factor out b
b(18-a) = -36a
b = =
b =
:
I don't think there are any pairs of natural numbers (meaning positive integers) that satisfy this.
A graph of the above equation shows this
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