Tara is carrying the following books in her backpack: a science book that weighs 2 1/2 pound, 2 library books that weigh 3/8 of a pound each, and math book that is half of the weight of her science book

Step-by-step explanation:

Science book weighs = 2 1/2 = 2.5 pounds

Library books weigh = 3/8 = 0.375 pounds

Math book weighs = 2.5 ÷ 2 = 1.25 pounds

Total weight of the books = 2.5 + 0.375 + 1.25 = 4.125 pounds

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: