Answer:
The amount of water must be added to this task = 60
Step-by-step explanation:
Let amount of water added = x
Then from the given conditions
A chemist would like to dilute a 90-cc solution that is 5% acid to one that is 3% acid. So
90 (0.05) = 0.03 ( 90 + x )
4.5 = 2.7 + 0.03 x
0.03 x = 1.8
x = 60
Therefore the amount of water must be added to this task = 60
(A ∩ B) means "A intersection B". Your problem statement tells you the intersection contains
{3, 4}
Answer:
for the first picture: 2.16
Step-by-step explanation:
12% of 18 is 2.16:
-convert 12 % to a decimal so 0.12 times 18
also, 12 % percent is 0.12 as a decimal because you move the decimal 2 places to the left to get .12
- multiply 0.12 times 18 to get 2.16 as the answer
I hope this helped for the first pic!
Ok so keep in mind, we are solving for x or z. We want to get it by itself.
So, with 6x= 5x+22, we need to subtract 5x from both sides of the = sign
So 6x - 5x = 1x.
Our new equation looks like 1x= 22
We still don't have x alone so we need to divide one on both sides of the =
Our new and final answer is x=22
Answer:
6/5
Step-by-step explanation:
120/100 =
12/10 =
6/5