Answer:
40 cups of sugar
Step-by-step explanation:
10 cups = 3 eggs
x cups = 12 eggs( a dozen )
12*10 =3x
120=3x
120/3=40
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:
-8/5 = -1 and 3/5
Step-by-step explanation:
slope = change in y/change in x = (4-12)/(9-4) = -8/5 = -1 and 3/5
There is a site that is called desmos that can help you.
Like so..↓