Felicia is working on the following problem: There are 730 balls to be put into packages of 3. How
many packages can be made, and how many balls
will be left over? Here are Felicia's ideas:
One hundred packages of balls will use 300
balls. After another 100 packages, we will have
used up 600 balls. Another 30 packages will use
another 90 balls, for a total of 690 balls used.
Ten more packages brings us to 720 balls used.
Three more packages will bring us to 729 balls
used, with 1 ball left over. All together we could
make 100 + 100 + 30 + 10 + 3 = 243 pack-
ages of balls with 1 ball left over.
Write equations as in the text that correspond to
Felicia's work.

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)

y do u put "subscirbe to ence" on a app for ppl who need with their work?

{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