Nina can stitch of a dress in 4 hours. if d represents the number of dresses and h represents the number of hours, which equation represents this proportional relationship? a. d = 6h b. 3d = 4h c. d. d = 4h e.

D. d = 4h

Step-by-step explanation:

If Nina can stitch 1 dress (d) in 4 hrs (4h) the relationship would be written as d = 4h cuz the 1 dress takes 4hrs to stitch.

I hope that helps & that I explained well enough!

:)

the ansew  is 4h

Step-by-step explanation:

i got it wrong and it said that was  correct

{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