To make lemonade, i use a ratio of $7$ parts water to $1$ part lemon juice. if i want to make a gallon of lemonade, and there are four quarts in a gallon, how many quarts of water do i need? write your answer as a proper or improper fraction.

Step-by-step explanation:

According to the problem, water and lemon have the ratio 7:1, 7 parts of water per 1 part of lemon.

Also, we know that one gallon have four quarts, and we want to make 1 gallon of lemonade. So, the amount of water would be , because the question is about water, and the amount of lemonade would be , because it would be the difference between the total 4 quarts (1 gallon) and the amount of water.

Now, using the ratios, we have:

Therefore, the amount of water needed is 3.5 gallons, and 0.5 gallons of lemon.