What are you saying is this even a question
Answer:
I believe it's
Step-by-step explanation:
A
however I could be wrong
A movie theater had 1200 seats arranged in a number of identical rowa. After the number of seats in every row had been increased by 3 and 2 rowa have been removed, the total number of seats in the theater then increased by 4. How many seats where there in each row originally
60
Y=my+b
which is 2=5(3)+b
2=15+b
-13=b
Step-by-step explanation:
1.
Subtract the coefficient from both sides, keep 55 on the same side.
Complete the square by dividing the coefficient by two and squaring it.
Use binomial to factor the left side.
2. Solve for x.
Remeber the square root of 64 is also -8 so
So the solutions are -5 and 11