Answer:
x = 5/6
Step-by-step explanation:
First, you would take 9x+4=3x+9 and cross out "3x" and change 9x to "6x". Now you have something like this: 6x+4=9. 9 minus 4 equals 5. So, 6x=5. To figure out x, we have to take 5 and divide by 6, to get x=5/6.
Answer:
25
Step-by-step explanation:
3 over 3 = 1
5 x (4-1)
5 x 4 = 20
5 x 1 = 5
20 + 5 = 25
Answer:
∠2 , ∠5 , ∠6
Step-by-step explanation:
∠2 = ∠1 {Vertically opposite angles}
∠2 = 154°
∠6 = ∠2 {Corresponding angles}
∠6 = 154
∠5 = ∠6 {Vertically opposite angles}
∠5 = 154
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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