4/5x=60. Please help! Will mark brainliest
2 answers:
You might be interested in
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.
There is a site that is called desmos that can help you.
Like so..↓
Like so..↓