Select the correct answer. 2 Nina can stitch 2/3 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=1/6h D. d=4h E. 1/6d=12h no links pls only answer if you know. will give brainliest IF correct.

  which is choice C

Explanation:

She can stitch 2/3 of a dress in 4 hours. Multiply both of those values by 3 to find that she can stitch 2 dresses in 12 hours. Cutting those two new values in half leads to Nina able to stitch 1 dress every 6 hours.

If h is the number of hours, and d is the number of dresses, then the "1 dress every 6 hours" can be represented by the equation h = 6d. Isolating d leads to the equation which is the same as writing d = (1/6)h.

Side note: We can rule out d = 6h because h = 1 leads to d = 6, when it should be the other way around.

{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: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.