Nels needs 15 gallons of lemonade for a company picnic. if he buys the lemonade in quart bottles, how many bottles does nels need to buy?

What we need to do is convert 15 gallons to quarts.

1 gal = 4 quarts

To find how many quarts 15 gallons is, multiply 15 on both sides of the equation above.

1 gal x 15 = 4 quarts x 15

15 gal = 60 quarts

That means Nels need to buy 60 quart bottles :)

He would need to buy 60 bottles because 1 gallon is equal to 4 US liquid quarts.