The correlation between temperatures and number of students wearing coats. Is it a positive or negative or no correlation
1 answer:
You might be interested in
Answer:
Final answer is x=90,
Step-by-step explanation:
Given equations are:
-x-4y=37 ...(i)
-2x-4y=-53 ...(ii)
multiply (ii) by -1
2x+4y=53 ...(iii)
Add (i) and (iii)
x=90
plug value of x=90 into (i)
-x-4y=37
-90-4y=37
-4y=37+90
-4y=127
Hence final answer is x=90,