Lasou. IU SELF-ASSESSMENT EXERCISE
Express:

(a)2 weeks as a ratio of 1 year
(b) 5 days as a ratio of 5 weeks
(C) 350g as a ratio of 5kg
(d) 720 seconds as a ratio 1 hour
(e) Half a million as a ratio of 2 billion

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.

They lost twenty games