Kong took 15, percent fewer seconds than nolan took to complete his multiplication timed test. kong took 85 seconds.

Kong took 85 seconds to complete his multiplication timed test. Consider the proportion:

Nolan took x seconds - 100%

Kong took 85 seconds - 100%-15%=85%

That is mathematically

Nolan took 100 seconds to complete the test.

answer: 20

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: