Answer:
t = 7
Step-by-step explanation:
Combine like terms
3t - 2t + 2 = 9
t + 2 = 9
Move the variable
t + 2 = 9
- 2 -2
t = 7
Answer: 22 minutes
Step-by-step explanation: 500-170 means that he drained 330 gallons of water so 330 divided by 15 gallons a minute so you get 22 so it takes 22 minutes to have 170 gallons left in the pool
The answer to this question is letter B
Answer:
Probably d but im d u mb
Step-by-step explanation:
A. After the mod. One wall is “x” longer than original (horizontal in diagram) and the other is “x” shorter (vertical)
(30+x)(30-x)
b. He original area = 30 x 30 = 900 sq. ft.
The mod. Area is (30+6)(30-6) = 36x24= 764 sq. ft.
So the room was largest to begin with when it was a square
