SOLUTION: the mass of 4 similar music books and 6 biology books is 7.2 kg. The mass of 2 such music books is 3.4 kg. Find the total mass of 2 music books and 6 biology books

Algebra ->  Finance -> SOLUTION: the mass of 4 similar music books and 6 biology books is 7.2 kg. The mass of 2 such music books is 3.4 kg. Find the total mass of 2 music books and 6 biology books      Log On