Mathematics, 04.10.2019 19:30 lostcharmedone01

Achemistry student needs to make 60 liters of a 30% alcohol solution. he has a 20% alcohol solution and a 40% alcohol solution in the lab. how many liters of each strength does he need to mix together
*the system of equations i did was: a+b=60 & .2a+.4b=18. i may be wrong but i seriously need

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Achemistry student needs to make 60 liters of a 30% alcohol solution. he has a 20% alcohol solution...

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Achemistry student needs to make 60 liters of a 30% alcohol solution. he has a 20% alcohol solution and a 40% alcohol solution in the lab. how many liters of each strength does he need to mix together *the system of equations i did was: a+b=60 & .2a+.4b=18. i may be wrong but i seriously need

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Achemistry student needs to make 60 liters of a 30% alcohol solution. he has a 20% alcohol solution and a 40% alcohol solution in the lab. how many liters of each strength does he need to mix together
*the system of equations i did was: a+b=60 & .2a+.4b=18. i may be wrong but i seriously need