25 were on the roller coaster.
Multiplication and subtraction
Answer:

Step-by-step explanation:
From the given figure it is clear that we two rays because both sides have one endpoint and goes on infinitely in only one direction.
If a ray has end point at A and goes on infinitely in only one direction towards point B, then ray is denoted as
.
For first side, we have point V as end point and ray goes goes on infinitely in only one direction towards point U. So, first side is
.
For second side, we have point V as end point and ray goes goes on infinitely in only one direction towards point W. So, second side is
.
Therefore, the sides are
.
Answer:
Step-by-step explanation:
I'm assuming that strange looking thing is a 9, so begin by multiplying both sides by that denominator to get:
then subtract 3 from both sides to get
and then square both sides to get
and get everything on one side to solve for x by factoring:
and factor that however it is you have learned to factor second-degree polynomials to get that
x = 16 and x = 9. We have to check for extraneous solutions because anytime you manipulate an equation, as we did by squaring both sides, you run the risk of these solutions that actually don't work when you plug them back into the original equation. Let's try 16 first:
If 16 is a solution, then this statement will be mathematically true.
and
so 16 works. Let's try 9:
We know that one doesn't work, because 9-9 = 0 and 0 over anything = 0, not 1.
x = 16 is the only solution.
Answer:
stationary time is 2 hours 30 minutes
Traveling time is 3 hours 30 minutes
Step-by-step explanation:
There are two distinct line types on the graph
the horizontal ones and the ones going towards the upper part
The horizontal ones represent the stationary positions while the climbing one represent the traveling time
The horizontal ones are;
3 to 3:30
4-5
6:30 to 7:30
Time here is ;
30
minutes + 1 hour + 1 hour = 2 hours 30 minutes
The traveling time;
2 - 3
3:30 to 4
5 to 6:30
7:30 to 8
1 + 30 min + 1hr 30 + 30
= 3 hours 30 minutes
Answer:
Step-by-step explanation:
The third quartile is at 75% of total of number of students.
So percentage score great or equal to this is 25%.