The chemist used 36 liters of 20% solution, 18 liters of 35 % solution, and 54 liters of 55 % solution.
<h3>What is an
equation?</h3>
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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Step-by-step explanation:
-3.5z - 2 + 1z - 3
Solving like terms
-2.5z - 5
Answer:
Equation: y = 2.5x
Answer: 43.75 drawers
Step-by-step explanation:
Equation: 10 - 7.5 = 2.5 and when you subtract 2.5 until the Number of Drawers (x) is 0, then you get 0 for Total Volume (y), so y =2.5x+0 or y = 2.5x
Answer: Substitute 17.5 into x.
y = 2.5(17.5)
y = 43.75 drawers
Answer:
4 pounds = 64 ounces and 5 pounds = 80 ounces
Step-by-step explanation:
One pound is 16 ounces
So pound to ounces you multiply by 16
Thus:
4 * 16 = 64
5 * 16= 80
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