During construction the workers need to mix dried bentonite into the concrete as it is being mixed to get the desired consistency. The workers decide to mix 800 mg of bentonite to be mixed with 198 lb of concrete mixed every 8 hours. The information for the concrete shows that 25-75 mg/kg per day is the appropriate mixture consistency. Are the workers within the desired range?

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:

so, converting firstly the mixed fractions to improper fractions and then "adding".

step-by-step explanation:

the answer is 89 d

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