I hope this helps you
1)
B=D
A=X
4x-20=3x-11
4x-3x=20-11
x=9
4x-20+C=180
4.9-20+C=180
C=180-16
C=164
2)
L=M
M+J=180
2x+10+18x+10=180
20x=160
x=8
M=2.8+10=26
J=18.8+10=154
K+J =180
K+154=180
K=26
3.22$ because your originally spending 35$ so the added 3.22$ makes up 38.22$
Answer:
The concentration of HCl in the mixture is 1L of 50% HCl
Step-by-step explanation:
Here, we want to know the percentage of HCl present which refers to the its concentration.
Firstly, the total volume we have is 0.375 + 0.625 = 1 L
we can calculate the percentage as follows;
The percentage of the 25% present is 37.5%
while the percentage of the 75% present is 62.5%
When we say the percentage present, we are referring to the amounts of the total liters which is 1 present.
So the concentration of the final mixture will be;
(37.5% of 25) + (62.5% of 65)
= 9.375% + 40.625%
Adding both gives = 50%
So the concentration we have is 1L of 50% HCl
Step-by-step explanation:
34−1.9 + 1234-1.9 + 12
Find the common denominator.
Click to see fewer steps ...
Write −1.9-1.9 as a fraction with denominator 11.
34 + −1.91 + 1234 + -1.91 + 12
Multiply −1.91-1.91 by 4444.
34 + −1.91⋅44 + 1234 + -1.91⋅44 + 12
Multiply −1.91-1.91 by 4444.
34 + −1.9⋅44 + 1234 + -1.9⋅44 + 12
Multiply 1212 by 2222.
34 + −1.9⋅44 + 12⋅2234 + -1.9⋅44 + 12⋅22
Multiply 1212 by 2222.
34 + −1.9⋅44 + 22⋅234 + -1.9⋅44 + 22⋅2
Multiply 22 by 22.
34 + −1.9⋅44 + 2434 + -1.9⋅44 + 24
Combine the fractions.
Click to see fewer steps ...
Combine the fractions that have a common denominator.
3−1.9⋅4 + 243-1.9⋅4 + 24
Multiply −1.9-1.9 by 44.
3−7.6 + 243-7.6 + 24
Simplify the numerator.
Click to see fewer steps ...
Subtract 7.67.6 from 33.
−4.6 + 24-4.6 + 24
Add −4.6 - 4.6 and 22.
−2.64-2.64
Divide −2.6-2.6 by 44.
−0.65-0.65