6.4 - Special Systems
{
y = x+1
-x + y = 3
{
y = 2x - 4
2x - y - 4 = 0
You are selling tickets for the high school play.
Student tickets cost $4 and adult tickets cost $6.
You sell 525 tickets and collect a total of $2876.
Write a system of equations and solve it to find how many of each
type of ticket you sold.
Your math teacher tells you that next week's test is worth 100
points and contains 38 problems.
Each problem is worth either 5 points or 2 points.
Write a system of equations and solve it to find
how many 5-point questions and how many 2-point questions
are on the test.
The length of a rectangle is 3 more than its width.
The perimeter of the rectangle is 58 cm.
What are the rectangle's dimensions?
A plane flew 900 miles from Alabama to Minnesota.
Going against the wind, it took 3 hours to fly there.
On the return trip, going with the wind, it took 2 hours.
What was the speed of the plane in still air?
What was the speed of the wind?