Which of these strategies would eliminate a variable in the system of equations? {
x
−
2
y
=
11
5
x
+
3
y
=
−
11

⎩
⎪
⎪
⎨
⎪
⎪
⎧


x−2y=11
5x+3y=−11

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

92ft long and 48 wide resurface 2.75$