Reston inc.'s annual sales normally equal $17,000,000. ten (10) percent of reston's sales are cash payments; the remaining 90 percent of sales are on credit, with 40 percent outstanding for 10 days, 30 percent outstanding for 20 days, 20 percent outstanding for 25 days, and 10 percent outstanding for 30 days. what is reston's days sales outstanding (dso)?
a. 19.00 days
b. 18.00 days
c. 21.25 days
d. 17.00 days
e. 23.75 days

answer:

your answer is: c. 196 7/8 in^3.

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation: