Suppose you bought supplies for a party from Party World. Three rolls of streamers and 15 party hats cost $30. Later, you bought 2 rolls of streamers and 4 party hats for $11. a. Define your variables and create a system of equations to express the given information.
b. Solve your equations to: Calculate the cost of each roll of streamers and calculate the cost of each party hat.

.

Step-by-step explanation:

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.