Manuela has saved $12000 over the last 10 years she decides to invest some of it at 5.5% annual interest and the rest at 4.5% annual interest after one year her total interest from both accounts is $628 how much did she invest in each account? Define variables, create equation, and solve.

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.

The answer is d. 16^2 + 63^2 = x^2hope this .