Question 15 A system of equations is shown below.
2 - 3y = 1
5z + 2 = 4
Which of the following describes possible first steps in correctly solving the system using the elimination method?
A
Multiply the first equation by -4 and then add the two equations.
B
Add 1 to the second equation and then add the two equations.
с
Multiply the first equation by -5 and then add the two equations.
D
Add -5 to the first equation and then add the two equations.

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Which points are solutions to the linear inequality y < 0.5x + 2? check all that apply. (–3, –2) (–2, 1) (–1, –2) (–1, 2) (1, –2) (1, 2)

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem