Question

A chemist has three different acid solutions,

Answer 1

The chemist used 36 liters of 20% solution, 18 liters of 35 % solution, and 54 liters of 55 % solution.

What is an equation?

An equation is an expression showing the relationship between two or more numbers and variables.

Let x represent the amount of 20% acid, y represent the 35% acid and z represent the 55% acid.

She created 108 liters of a 40 % acid mixture, hence:

x + y + z = 108    (1)

And:

0.2x + 0.35y + 0.55z = 0.4(108)   (2)

55 % solution used is 3 times the number of liters of 35 % solution used. Hence:

z = 3y   (3)

From the 3 equations:

x = 36, y = 18 and z = 54

The chemist created 108 liters of a 40% acid mixture

Find out more on equation at: brainly.com/question/2972832

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