It takes Caroline 1/5 of an hour to walk a mile. Four of Caroline's friends time themselves on their own walks of different lengths. *David: walked 1/2 of a mile in 2/5 of an hour

*Jeanette: walked 1/2 of a mile in 1/10 of an hour

*Kay: walked 1/5 of a mile in 12 of an hour

*Mark: walked 1/3 of a mile in 3/5 of an hour

Which friend is walking at the same rate as Caroline?

A. David

B. Jeanette

C. Kay

D. Mark

c

Step-by-step explanation:

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: