y=2x
Step-by-step explanation:
I dont know what else there is sry
Answer:


Step-by-step explanation:
The given system is:
4x-3y=8
5x-2y=-11
We make x the subject in the top equation to get:

Plug this expression for x in the bottom equation to get

We expand to obtain

Multiply through by 4

Group similar terms



This means


Answer:
31-19=12°F
12°F
Step-by-step explanation
If it was 19 degrees on Monday and 31 degrees on Tuesday you have to see how much did it go up in temp. So..
the difference between 19 and 31 is 12, so that means it went up by 12°F.
An = a1+d*(n-1)
a11 = 75-8*(11-1) = -5
You could pick just about anything 3/8 is not the same thing as 5/7 and neither is 3/4
Something that is equivalent would be something like 10/14 or 20/28