Answer:
Step-by-step explanation:
Solve simultaneously
-5x-3y=9
4x-187-54=0
4x=241
x=60.25
To get y
Substitute for x in equal one
-5(60.25)-3y=9
-301.25-3y=9
-3y=9+301.25
-3y=310.25
y=-103.4
Find the sum of -3a and 5a -3
-3a + (5a-3)
2a-3
Y=-5x-2
-2= y-intercept
-5x= slope
find y-intercept on a graph, make a dot.
then use slope from y-intercept dot, make another dot.
Draw line.
Is it a positive or Negative slope?
Hope that helps.
Sec is 1/cos so sec -120 is 1/cos -120 which is -2
Answer:
867 tickets were sold because if you divide how much they earned by how much it cost you get 867
