Answer: There were 10 students in the class on the first day.
Step-by-step explanation:
Let x be the number of students of the first day.
Given: A college writing seminar increased its size by 50 percent from the first to the second day.
i.e. Number of students on second day = (Number of students on first day)+(50% of Number of students on first day)
= x +50% of x
= x+0.50x
= (1.50)x
=1.50x
Since, it is given that the total number of students in the seminar on the second day was 15.
i.e. 

Hence, there were 10 students in the class on the first day.
Enough to cover the bottom of the tank.
3 4/5 rounds to 4
5 1/6 rounds to 5
4 x 5 = 20
I hope this helped! :)
Answer:
The least of the three integers is 1.
Step-by-step explanation:
Hi there!
Let <em>x</em> be equal to the least of these integers.
Let <em>x</em>+1 and <em>x</em>+2 be the next consecutive integers.
We're given that these integers have a sum os 6.
We can use these to construct an equation:

Combine like terms:

Therefore, the least of these integers is 1.
The other two integers would be 2 and 3.
I hope this helps!
Answer:
-2x - 15
Explanation:
(2x - 6) - (4x + 9)
2x - 6 - 4x - 9
-2x - 15