Which statement is an example of the transitive number property? N → a+beN
3 x (5 x 2) is equal to (3 x2) x 5
If 5= a + 2 and a + 2 = b. then b=5
If a=5 x 3 then 5 x 3=a
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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.