you are hiking. the total weight of your backpack and it's contents is 13.375 pounds. you want to carry no more than 15 pounds. how many extra water bottles can you add to your backpack if each bottle weighs 0.75?
15 - 13.375 = .75x
1.625 = .75x divide both sides by .75
2.16 = x
He can carry 2 bottles
