Mathematics, 04.04.2020 11:21, zitterkoph

A teacher measured the mass of three textbooks. The mass of the math book is 9/10 kilogram. The mass of the science book is 3/10 kilograms less than the mass of the math book. The mass of the reading book is 2/10 kilograms greater than the mass of the science book. what is the mass of the reading book?

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A teacher measured the mass of three textbooks. The mass of the math book is 9/10 kilogram. The mass...