WyzAnt.comclub a has the first book free and the rest 8 dollars and club c the first two books cost 10 dollars and the rest 6 dollars
how many books do you need to buy to make the cost the sam at club a and club c.
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1 Answer
Let n be the number of books.
Cost at club a: 8(n-1)
Cost at club b: 20+6(n-2)
The same cost means 8(n-1) = 20+6(n-2)
Distribut: 8n - 8 = 20 + 6n - 12
Collect variables in one side, and constants in the other side,
2n = 16
n = 8 books <==Answer
