SOLUTION: have 12 coins in my pocket. all of them are either 10c coins or 50c coins. they are worth 2.40. how many 10c coins do i have and how many 50c coins do i have?
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Question 941084: have 12 coins in my pocket. all of them are either 10c coins or 50c coins. they are worth 2.40. how many 10c coins do i have and how many 50c coins do i have? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! x the number of 50¢ coins. Then... the number of 10¢ coins
...
50x + 10(12-x) = 240¢ (CENTS makes Sense)
x = 120/40 = 3, the number of 50¢ coins. And 9 10¢ coins.
...
And...checking
150 + 90 = 240¢ 0r $2.40
