Answer:
3x + 9 = 45
Step-by-step explanation:
3 shirts at x dollars each cost 3x
lunch costs 9
altogether she spent 3x + 9
she spent 45
3x + 9 = 45
75% because he played 3/4 quarters which is 75%
The diagram tells you it is 33°, so the answer is B
Answer:
y=55+15x
Step-by-step explanation:
We have been given that a rectangular auditorium seats 1702 people. Also, the number of seats in each row exceeds the number of rows by 9.
Let us assume that there are x rows in the auditorium. Therefore, there must be (x+9) seats in the each row. This will also be equal to the number of columns in the auditorium.
Therefore, we can set up an equation as:

We can now factor this quadratic as shown below:

Upon solving this equation, we get:

Since number of rows cannot be negative. Therefore, there must be 37 rows in the auditorium. And hence, the number of seats in each row will be 37+9=46 seats.