2x-y=10
Y=-x-1
Solve the system of equations

 (9,8)

Step-by-step explanation:

  let 2x - y = 10  be [a]   &   y = x − 1 be [b]

First, lets substitute [b] into [a] and solve for x

  2x - ( x - 1) = 10

         2x - x  = 10 - 1

                  x = 9

Now, since x = 9, we can substitute for x in [b]

      ⇒  y = 9 - 1

            y = 8

∴ the solution for the system of equations is x = 9, y = 8 OR  (9, 8)

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph