Answer:
(-2,4)
Step-by-step explanation:



This implies
.
This means
and
.
Subtract 3 on both sides for first equation:
.
Add 3 on both sides for the second equation:
.
So the pre-image (x,y) is (-2,4) if the image is (1,1).
Let's check:



So the solution has been checked and verified.
X is the number of carpeting done
22x+100=25x+70
22x=25x+70-100
22x=25x-30
22x-25x=-30
-3x=-30
x=-30/-3
x=10
A person would have to do the carpeting 10 times in order to pay the same price for both companies (equal).
I dont know if that's your question but this is what is usually asked when giving a problem of that kind.
Answer:
about 20% of our population
Step-by-step explanation:
Answer:
the number is 2
Step-by-step explanation:
5x2=10+9=19
Answer:
B.
Step-by-step explanation: