1. 151 students enrolled in math7 were assigned a survey. 127 students completed the survey. (a) what percent of students completed the survey? (b) 26 students who completed the survey state they have a c in the course. if all students in the class completed the survey, how many would have a c?

(a) would be about 84 percent

(b) would be 26 students, because out of 127 students only 26 students have a

(c) in math7.

so 151 is the total number so were going to use that as 100% now we have an equation as 100%= 151 and x=127 so we have to figure that out if we multiply both sides by the x equation and then we divide the answer would round to 84%

first one is a: renaming a fraction. second one is c: de-c

step-by-step explanation:

my explanation is that these were the answers on edg : )

{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