Answer:
See below.
Step-by-step explanation:
Let “x” be a coach ticket.
Let “y” be a first class ticket.
Let’s set up a system of equations.
120x + 990y = 3210
x + y = 5
120x = 3210 - 990y
x = 26.75 - 8.25y
26.75 - 8.25y + y = 5
- 7.25y = -21.75
y = 3
120x + 990 * 3 = 3210
120x = 240
x = 2
She bought 2 coach tickets and 3 first class tickets.
divide 53.32 by 12 which is 4.36$ per package of coffee
Open interval<span> is an interval that does not contain its endpoints</span>