Solve: a 100-ml pitcher of lemonade is currently 90% water and 10% lemon concentrate. how much water must you add to change the ballance to 95% water and 5% lemon concentrate.

Must add 100 milliliters of water

Step-by-step explanation:

Let

x ----> milliliters of water to add

we know that

Originally

The milliliters of lemon concentrate is equal to the 10% of 100 mL

so

Now

The balance of lemon concentrate is equal to 5%

The milliliters of lemon concentrate is the same

so

solve for x

therefore

Must add 100 milliliters of water