SOLUTION: 3 kinds of sushi Salmon,tuna,California There were twice as many salmon rolls as California rolls. There were 4 more tuna rolls than California rolls. There were 28 rolls in th

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Question 1113434: 3 kinds of sushi
Salmon,tuna,California
There were twice as many salmon rolls as California rolls.
There were 4 more tuna rolls than California rolls.
There were 28 rolls in the combo plate.
How many of each kind of roll were there?
Answer by ikleyn(52920) About Me  (Show Source):
You can put this solution on YOUR website!
.
salmon + tuna  + California = 28


2x     + (x+4) + x          = 28


4x + 4 = 28  ====>  4x = 28 - 4 = 24  ====>  x = 24%2F4 = 6.


Answer.  6 California rolls;  6*2 = 12 salmon rolls;  6+4 = 10 tuna rolls.

Solved.


The lesson to learn from the solution is THIS: 

     This problem is for one (ONE) unknown - not for 3.


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