The average cost of printing a book in a publishing company is c(x) =,   , where x is the number of books printed that day and k is a constant. find k, if on the day when 200 were printed the average cost was $9 per book.

ANSWER: k = 700

WORKINGS

Given, c(x) = (5.5x + k)/x where,

c(x) is the average cost of printing a book

x is the number of books printed

k is a constant

If, c(x) = 9

x = 200

Find k

c(x) = (5.5x + k)/x

9 = [5.5(200) + k]/200

Multiply both sides of the equation by 200

9 * 200 = [5.5(200) + k]/200 * 200

1800 = 5.5(200) + k

1800 = 1100 + k

Subtract 1100 from both sides of the equation

1800 – 1100 = 1100 – 1100 + k

700 = k

k = 700

Therefore, given that c(x) = (5.5x + k)/x, if on the day when 200 were printed the average cost was $9 per book, the constant, k = 700

abde or 1,2,4, 5 is the answer

step-by-step explanation:

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !