White shapes and black shapes are used in a game.
some of the shapes are circles.
all of the other shapes are squares
the ratio of the number of white shapes to the black shapes is 3: 7
the ratio of the number of white circles to the number of white squeres is 4: 5 the ratio of the number of black circles to the number of black squesres is 2: 5 work out what fraction of all the shapes are circles

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Identify the number as a rational or irrational. explain. 127

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16