A coin is tossed two times. The set of outcomes is
given as S = {HH, HT, TH, TT).
Let X represent the number of times heads
occurs.

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.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

Solve for the equation x. 2x + 22 = 4(x + 3)