Do Now “Diary Of A Wimpy Kid: The Long Haul” (TFK 12/19/14) Calculate This is how many pages in the book. The kid reporter who reviewed this book rated it a ____ out of 10. Simplify to find his rating Solve 3 3 – 4(9 + 5)

Do Now

1/27/ B Inequalities

Prefix- “in”- means not Inequality = Not Equal ≠

inequality- a mathematical sentence that compares quantities, ≤, ≥

Example 1 Of the numbers, 3, 4, or 5, which is a solution of the inequality m + 9 > 13? The number 5 is a solution.

Example 2 Is a = 5 a solution of the inequality a + 6 < 12? a + 6 < 12Write the inequality. Since 11 < 12, 5 is a solution. 11 < 12Simplify < 12Replace a with 5. ?

Example 3 Is b = 4 a solution of the inequality 18 < 21 – b? 18 < 21 – b Write the inequality. Since 18 is not less than 17, 4 is not a solution. 18 < 17Simplify. 18 < 21 – 4 Replace b with 4. ?

Example 4 A state park recorded the number of cars entering the park last week. On which days did more than 65 cars enter the park? Use the inequality c > 65, where c represents the number of cars, to solve. On Wednesday and Saturday more than 65 cars entered the park.

1.) Of the numbers 8, 9, and 10, which is a solution of the inequality c – 4 < 5? 2.) Is r = 9 a solution of the inequality r – 5 > 4? Why or why not? 3.) Is t = 3 a solution of the inequality 10 ≥ 13 – t? Why or why not? 4.) The table shows the number of cars entering a state park last week. Suppose the information booth closes early on any day when no more than 50 cars enter the park. Use the inequality c ≤ 50 to determine which days the information booth closes early. Exit Ticket

Homework Pg. 398 #1-20 Evens Study Ch. 7 Quiz I Tomorrow.