Heyyyyyyyyyy! I think 1 of each because- y’a I just think that.
x = liters of 20% solution
Mixing the 20% solution with the 60 L of 90% solution gives a new mixture with volume (x + 60) L. Each L of the 20% solution contributes 0.2 L of alcohol and thus a total of 0.2x L of alcohol, while the 60 L of 90% solution contributes 54 L of alcohol.
We want the concentration of the new mixture to be 80%, so we require

Solve for x:



So you will need 30 L of the 20% solution.
Answer:
c maybe i can barely read it :(
Step-by-step explanation:
Answer:
The Total number of peoples went to street fair including all three days is 785 peoples .
Step-by-step explanation:
Given as :
The number of people went to fair on Friday = F = 215 peoples
The number of people went to fair on Saturday = Sa = 163 more people than on Friday
So, The number of people went to fair on Saturday = The number of people went to fair on Friday + 163 peoples
∴, The number of people went to fair on Saturday = 215 + 163 = 378 peoples
And
The number of people went to fair on Sunday = Su = 192 peoples
So , The Total number of peoples went to fair = The number of people went to fair on Friday + The number of people went to fair on Saturday + The number of people went to fair on Sunday
So, The Total number of peoples went to fair = 215 peoples + 378 peoples + 192 peoples
∴ The Total number of peoples went to fair = 785 peoples
Hence , The Total number of peoples went to street fair including all three days is 785 peoples . Answer