Answer:
Elena needs to sell 60 tickets
Elena must sell 90 tickets to earn $900
Step-by-step explanation:
Divide the total money needed by how much each ticket costs:
900 ÷ 10 = 90
If you're talking about how many more tickets are needed:
Subtract the total tickets needed by how many tickets Elena already sold
90 - 30 = <em>60 more tickets needed</em>
I hope this helped!
10√10=10×3.162=31.622 is in decimal or 10×11½
-1
Solve for y into y=mx+b
2x-2y=20
-2y=-2x+20
y=(-2x+20)/-2
y=x-10
the slope is m, so it’s 1
A line perpendicular to that would be -1
9
