Answer:
15
Step-by-step explanation:
i had this question and it was correct trust me.
Step-by-step explanation:
x+(3x+10)=90
4x+10=90
4x=80
x=20 Ans
Y = -2x + 4
The slope is -2, therefore the equation is linear.
Answer:
Yes, the graph represents a proportional relationship. No, the graph does not represent a proportional relationship. It is a straight line, but it does not intersect the point (0, 0).