SOLUTION: The ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and 6 yellow ones, the ratio is 4:5. How many yellow jelly beans were in the d

Question 1033571: The ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and 6 yellow ones, the ratio is 4:5. How many yellow jelly beans were in the dish?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let the original number of red DISABLED_event_ones=
Let the original number of yellow DISABLED_event_ones=
-----------------------------------------
(1)
(2)
--------------------------
(1)
and
(2)
Substitute (1) into (2)
(2)
Multiply both sides by
(2)
(2)
(2)
and
(1)
(1)
(1)
----------------------
36 yellow beans were in the dish
-----------------------------
check:
(1)
(1)
(1)
(1)
and
(2)
(2)
(2)
(2)
(2)
OK
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