Answer:
Step-by-step explanation:
10x+10y=-10
9x+10y=18
= 10x+10y=-10
-9x-10y=18
= x=8
step two is to find y:
10x+10y=-10
10(8)+10y=-10
80+10y=-10
10y=-90
y=-9
your answer:
(x,y)= (8,-9)
4 pizzas because, 12 slices /3 per person =4 and 16 people /4 = 4 pizzas
Answer:
B) ∠ 5
C) ∠ 4
F) ∠ 6
Step-by-step explanation:
you can mark the other user brainliest
Second question:
sum of all the interior angle 180*(8-2)=1080 degree
sum of one interior angle 1080/8=135 degree
The number of comic books is an illustration of a linear function
- The complete equations are:
and 
- The value of b has increased by 4
She had 17 comic books already.
So, we have:

Her order of 65 books contains 8 comic books per collection.
So, we have:


This is represented as:

So, we have:

Rewrite as:

Subtract 17 from both sides

Divide both sides by 8

Assume she has 97 books in her collection, then the equation would be represented as:

Subtract 17 from both sides

Divide both sides by 8

The values of b are 6 and 10.
The difference between 6 and 10 is 4
Hence, the value of b has increased by 4
Read more about linear equations at:
brainly.com/question/11897796