select the correct answer. julissa is printing out copies for a work training. it takes 4 minutes to print a…

select the correct answer. julissa is printing out copies for a work training. it takes 4 minutes to print a color copy, and it takes 2 minutes to print a grayscale copy. she needs to print no fewer than 8 copies within 25 minutes. which system of inequalities represents the number of color copies, x, and grayscale copies, y, that julissa can print to meet her goal? a. 2x + 4y ≤ 25 x + y ≥ 8 b. 4x + 2y ≥ 25 x + y ≥ 8 c. 4x + 2y ≤ 25 x + y ≤ 8 d. 4x + 2y ≤ 25 x + y ≥ 8
Answer
Explanation:
Step1: Analyze time - limit
It takes 4 minutes to print a color copy ($x$) and 2 minutes to print a grayscale copy ($y$), and she has 25 minutes in total. So the time - related inequality is $4x + 2y\leq25$.
Step2: Analyze number - of - copies limit
She needs to print no fewer than 8 copies. So the number - of - copies related inequality is $x + y\geq8$.
Answer:
D. $4x + 2y\leq25$, $x + y\geq8$