SOLUTION: Nicholas bought three business related books. His total bill was $150. If one book cost him 50% more than the other two books combined what was the price of this more expensive boo
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Question 1014043: Nicholas bought three business related books. His total bill was $150. If one book cost him 50% more than the other two books combined what was the price of this more expensive book?
Found 2 solutions by fractalier, josmiceli:
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Let us call the price of the other two books combined, x.
Then the most expensive one costs (1.5)x.
Then we can write
x + (1.5)x = 150
2.5x = 150
x = $60
and
1.5x = $90, the price of the expensive book.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the cost of the other 2 books combined
Let = the cost of the most expensive book
(1)
(2)
-----------------
Substitute (2) into (1)
(1)
(1)
(1)
and
(2)
(2)
(2)
the cost of the most expensive book was $90
--------------
check:
(1)
(1)
(1)
OK
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