Liters 3107

Find how many liters of water at 80 °C and 20 °C need to mix to get 30 liters at 60 °C.

Final Answer:

a =  20 l
b =  10 l

Step-by-step explanation:

V=30 l  80a+20b=V 60 a+b=V 80a+20b=30 60 a+b=30  80 a+20 b=30 60  80a+20b=1800  Row2801 Row1Row2 0.75b=7.5  b=0.757.5=10 a=80180020b=80180020 10=20=20 l  a=20 b=10



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algebraUnits of physical quantitiesGrade of the word problem

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