Akiddie pool holds miniature plastic ducks in different colors. sophia randomly picks up a duck and then replaces it. she repeats this process 100 times. the table shows the results of her experiment.

what is the relative frequency of choosing a red duck? what color of duck is there likely to be the most of in the pool?

a. the relative frequency is 0.3. it is likely that most ducks are blue.
b. the relative frequency is 0.2. it is likely that most ducks are yellow.
c. the relative frequency is 0.3. it is likely that most ducks are yellow.
d. the relative frequency is 0.2. it is likely that most ducks are green.

26?

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