Add 12 cups of water to every 4 cups of concentrated cleaner. which if the following proportions can be used to find w, the number of cups of water danielle will add to 8 cups of concetrated cleaner

3 cups of water for every cup of concentrate since you have 8 cups of concentrate you would add 24 cups of water

Answer=24 cups

Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.