SOLUTION:
There are eight times as many 10 cent coins as there are 5 cent coins in a money box. The value of all the 10 cent coins is 450 cent more than the value of 5 cent coins. How ma
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Question 740916:
There are eight times as many 10 cent coins as there are 5 cent coins in a money box. The value of all the 10 cent coins is 450 cent more than the value of 5 cent coins. How many 5 cent and 10 cent coins are there in the money box
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of 5 cent coins in box
Let = number of 10 cent coins in box
-----------------
(1)
(2) ( all values in cents )
---------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
and, since
(1)
(1)
(1)
There are 6 of the 5 cent coins in box
There are 48 of the 10 cent coins in box
check:
(2)
(2)
(2)
(2)
OK
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