Shelby likes to knit hats and mittens for friends and family. last fall, she needed three hats and one pair of mittens, which took a total of 30 hours. this fall, she needed one hat and four pairs of mittens, which took a total of 54 hours. if each hat and each pair of mittens takes the same amount of time to net, how long does it take shelby to knit a hat and a pair of mittens?

it takes shelby hours to knit a hat and hours to knit a pair of mittens.

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

answer:   14

step-by-step explanation:          

pu you stank bo u ugly bo lol

because they could drop even lower..

{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