Answer:
Step-by-step explanation:
Ok, so i cant really awnser all the questions on that page but a very important thing to know is that it is proportinal if the layout is y=mx. the m is usually replaced with something else though. So for that first question, its proportianal. Try your best to turn those story problems into equations and then see if it matches the y = mx equation if not, its not
(-2x + y - 4) - (-3x - 2y) = x + 3y - 4
Answer:
non proportional
Step-by-step explanation:
1/2 doesnt go into 3/4 and 20 doesnt go into 150
1) h ≥ 19
2) y > 6
3) 2x ≤ 10
x ≤ 5
4) 9x ≤ 45
x ≤ 5
X=t-yz and we are asked to solve for y so, subtract t from both sides
x-t=-yz divide both sides by -z
(x-t)/(-z)=y
y=(x-t)/(-z) multiply the numerator and denominator by -1
y=(t-x)/z
