Let x be the number of rows.
If the number of rows is 7 less than the number of seats in each row, then the number of seats in a row is x+7. The total number of seats is
x·(x+7).
You know that a theater can seat 120 people, then
x·(x+7)=120.
Solve it:
The number of rows must be positive, then x=8.
Answer: there are 8 rows with 15 seats at each.
Answer:
y=-1/2x+6
Step-by-step explanation:
Answer:
a) 1068 b)272
Step-by-step explanation:
For question a you would just add the two numbers together.
881+187=1068
For question b you would
-187+459=272
Answer:
f(-2) =8
Step-by-step explanation:
f(x) = 3x^2+x-2
Let x = -2
f(-2) = 3 * (-2)^2 + (-2) -2
= 3(4) -2 -2
=12 -2-2
=10 -2
=8
Answer:
picture plz?
Step-by-step explanation:
