−3x − 3y = 3

y = −5x − 17

solve the above system of equations using substitution. show all work.

. i have the flu and my brain isn't working.

  (x, y) = (-4, 3)

Step-by-step explanation:

I would start by dividing the first equation by 3 (because you can).

  -x -y = 1

Now, substitute the expression in the second equation for y:

  -x -(-5x -17) = 1

  -x +5x +17 = 1 . . . . . use the distributive property to eliminate parentheses

  4x = -16 . . . . . . . . . . collect terms, subtract 17

  x = -4 . . . . . . . . . . . . divide by 4

  y = -5(-4) -17 = 20 -17 = 3 . . . . . substitute for x in the second equation

The solution is (x, y) = (-4, 3).

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)