Answer:
(2, -1, 1)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Answer:
-2 > k > -7
Step-by-step explanation:
what you do to one section, you have to do to all
-5 < -5k - 15 < 20
add 15 to each part
10 < -5k < 35
divide by -5 (when you divide by a negative, it flips the inequality signs!)
-2 > k > -7
So I estimated to 110. And I got 50 rock songs and 60 dance songs. I used the ratio 5:6. Hope this helps you.