Marcus are 1/3 of a pizza on monday night. he then ate 1/4 of the remaining pizza on tuesday. which of the following expressions shows how much pizza marcus ate in total?

B would be correct.

Step-by-step explanation:

You have to subtract the 1/3 and 1/4 by the whole pizza (1) otherwise you never had a whole pizza according to your equation. By doing 1-1/3 you solve for the amount left on Monday, and when you subtract 1/4 from the number you just got, you have solved for the total amount left on Tuesday.

1-1/3=2/3

2/3-1/4= 2/3 * 4/4 - 1/4 * 3/3 =

8/12-3/12= 5/12 of a pizza left

it could be 1,3 and more others to create a cylinder.

step-by-step explanation:

{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