Determine the value of x for which r ∥ s if m∠1 = 40 – 4x; and
m∠2 = 50 – 8x

The choices are
2.5

2

30

1.5

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg