The first solution contributes 0.78*1 = 0.78 L of acid.
The second contributes 0.64*6 = 3.84 L of acid.
There will be 7 L total of the new solution, and 3.84 + 0.78 = 4.62 total L of acid in it. So the new solution has a concentration of 4.62/7 = 0.66, or about 66%.
-3xa=-3a
-3x6=-18
so it is (i think) -3a+-18
You would divide 6 by 30.
6/30=0.2
Therefore the answer is D
Answer:
$15.00
Step-by-step explanation:
3000-1800
1200
1200/6 (6=difference of general and student)
200
3000/200
15
<u>Double Check</u>
1800/200
9
15(price of general)-9(price of student)
6
6x-y+33=0
Step-by-step explanation:
m=y2-y1/x1-x2
m=1-(-3)/18-(-6)
m=4/24m=6
m=y-y1/x-x1
6=y-y1/x-x1
6x-y+33=0
