Answer: B. −9
Step-by-step explanation: -7--(-2)
−7+−2
−9
A community group bought 30 tickets to an amusement park at a total cost of $810. They bought x student tickets for $25 each and y adult tickets for $30 each.
***
let x=number of student tickets bought
30-x=number of adult tickets bought
..
25x+30(30-x)=810
25x+900-30x=810
5x=90
x=18
30-x=12
number of student tickets bought=18
number of adult tickets bought=12
Hope this helps!
Answer:
Quadrant I (one). 73 degrees
Step-by-step explanation:
See the attached image.
To get a coterminal angle, add 360 degrees. 360 + (-287) = 73.
make a line going straight from (0,0) to (2,2) and so on and the other line starts at (0,0) and go to (1,1) and follow along the other line
