If you mix a 10% solution with a 30% solution to create 20 mL of a 20% solution, how many mL of each do you need?

To prepare 50 g of a 5% ointment using a 10% ointment and a 2% ointment, how much of each should you use?

How many parts of a 15% solution and a 5% solution are needed to create 30 mL of a 10% solution?

To prepare 100 mL of a 12% solution using a 20% solution and a 5% solution, how much of each do you need?

If you need to create 200 mL of a 20% solution from a 25% solution and a 10% solution, how many mL of each do you need?

How many grams of a 3% solution and a 1% solution are needed to create 60 g of a 2% solution?

To mix 80 mL of a 6% solution using a 12% solution and a 2% solution, how much of each do you need?

If you want to prepare 100 mL of a 4% solution from a 6% and a 2% solution, how much of each do you need?

Create a 25 mL solution that is 5% by mixing a 10% solution and a 2% solution. How much of each solution is needed?

How many grams of a 9% ointment and a 3% ointment are needed to make 100 g of a 6% ointment?