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
#SPJ1
Answer:
D
Step-by-step explanation:
A function input can only have ONE output value
so the number 5 can't output two different numbers
I subtracted 15-8 gave me 7 then I took
10- my answer witch was 7
10-7=3
The best thing to do here is to find a common factor in all 3.
24, 8 and 16 all have 8 in common- therefore, this will be outside the bracket
You then need to divide everything in the equation by 8, to find out what will go inside the bracket.
24/8= 3
8y/8= y
16w/8= 2w
Therefore, these go inside the bracket.
The factorisation os 24+8y-16w is 8(3+y-2w)
Hope this helps :)
Step-by-step explanation:
10/20 per try, .2multiply by 100 tries = 20