Help with this question I also need explanation on how to do it!

C. It is correct because 1 7/9 x 3/8 equals 2/3

Step-by-step explanation:

- First we need to figure out if the solution is correct or incorrect. To do this, we will flip the fraction and multiply it. For example...

2/3 x 8/3 = 16/9 = 1 7/9

- Now we must determine which of the two correct options is correct. Lets try C.

You need to take 16/9/9 x 3/8 = 2/3. As you can see, this is correct and works.

- Hope this helps! If you would like a further explanation please let me know.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

{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