Problema Solution
Alfie buys 2 books that cost exactly the same. She pays with a 10 dollar bill her change is 6 dollars and 30 cents. What is the cost of 1 book
Answer provided by our tutors
let 'x' represent the cost of each book
6 dollars 30 cents = 6.30 dollars
10 - 2x = 6.30
by solving we find:
x = $1.85
x = $1 and 85 cents ($1 = 100 cents)
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the cost of 1 book is 1 dollar and 85 cents.