Objective I can solve word problems Word Problem

Objective: I can solve word problems!

Word Problem Solving Strategies • Read through the entire problem. • Highlight the important information and key words that you need to solve the problem. • Identify and define your variables. • Write the equation or inequality. • Solve. • Write your answer in a complete sentence. • Check or justify your answer (optional).

Age Problem Write an equation and solve: Suzie is 3 years older than twice Crystal’s age. If the sum of their ages is 6, how old are Suzie and Crystal? Let x be Crystal’s age (x + 3) + x = 6 x=1 Crystal is 1 year old and Suzie is 5 years old.

Travel Problem Write an equation and solve: Two buses leave Houston at the same time and travel in opposite directions. One bus averages 55 mi/h and the other bus averages 45 mi/h. When will they be 400 miles apart? The buses will meet in 4 hours.

Geometry Problem Write an equation and solve: The length of a rectangle is 3 cm greater than its width. The perimeter is 24 cm. What are the dimensions of the rectangle? The width is 4. 5 cm and the length is 7. 5 cm.

Inequality Key Words • • • at least - means greater than or equal to At most –means less than or equal to no more than - means less than or equal to more than - means greater than less than - means less than Between -means compound inequality with and

• Two brothers are saving money to buy tickets to a concert. Their combined savings is $55. One brother has $15 more than the other. How much has each saved? Let x be the amount 1 st brother saved. x + (x+15) = 55 x = 20

p. 30: 27, 45, 53, 61 p. 38: 11, 13, 25, 27, 51, 55