Question

Dmitri needs 6 liters of a 42% solution of sulfuric acid for a research project in molecular biology. He has two supplies of sulfuric acid solution: one is an unlimited supply of the 54% solution and the other an unlimited supply of the 36% solution. How many liters of each solution should Dmitri use?
Dmitri needs 6 liters of a 42% solution of sulfuric acid for a research project in molecular biology. He has two supplies of sulfuric acid solution: one is an unlimited supply of the 54% solution and the other an unlimited supply of the 36% solution. How many liters of each solution should Dmitri use?
@Mathematics

Answer 1

you basically need to solve simultaneous equations of the form:\[x+y=6\]\[.54x+.36y=.42\]where x is the number of liters of 54% solution and y is the number of liters of the 36% solution

Answer 2

sorry 2nd equation should be\[.54x+.36y=.42 * 6 = 2.52\]

Answer 3

i got 54% solution: 4 liters; 36% solution: 2 liters?

Answer 4

It should be the other way around: 2 liters of 54%, 4 liters of 36%

Answer 5

Thank you so much!