The price for a share of stock for company Dogz Rule Inc at the beginning of the week was $50.75. Over the next 5 days, the stock gained $2.50 on Monday, lost $3.25 on Tuesday, lost $1.75 on Wednesday, gained $1.25 on Thursday, and gained $4.75 on Friday. What was the price for the share of stock at the end of Friday? Group of answer choices

$12.25

$25.75

$54.25

$37.25

$54.25

Step-by-step explanation:

50.75 + 2.50 - 3.25 - 1.75 + 1.25 + 4.75 = ?

54.25

{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