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tekilochka [14]
3 years ago
10

A scientist needs to make 2 liters of saline solution (salt water), in which the salt

Mathematics
1 answer:
gulaghasi [49]3 years ago
5 0

Answer:

1.60 L of 10% solution

0.40 L of 35% solution

Step-by-step explanation:

If x = amount of 10% saline solution, and y = amount of 35% saline solution, then:

x + y = 2

0.10x + 0.35y = 0.15(2)

Solve with substitution:

0.10x + 0.35(2 − x) = 0.15(2)

0.10x + 0.70 − 0.35x = 0.30

0.40 = 0.25x

x = 1.60

y = 0.40

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