# Riemann sum word problem

##### New member
A mental health center has 300 patients. They admit 100 new patients each month. The fraction of patients receiving treatment for (t) or more months is represented by table below

0/1
3/.5
6/.3
9/.2
12/.1

how many patients are left after 12 months. Use a left endpoint reimann approx

my approx was 6 but how does this equate? Do I tunes it by the initial 300? So 1800?

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#### Jomo

##### Elite Member
Please fix the top line that say The fraction of patients receive meant treatment (t) it more months is represented by table below

##### New member
The fraction of patients receiving treatment for (t) or more months is represented by table below

##### New member
Please fix the top line that say The fraction of patients receive meant treatment (t) it more months is represented by table below
Could you offer any help?

#### Jomo

##### Elite Member
Do you know how to rad the table, if then please explain so we know that you understand it. I assume that there were initially 300 patients.

##### New member
Yes the x value or t value in this case is the amount of months passed. The f(t) is the amount of people who stay in treatment for t months

#### Jomo

##### Elite Member
Yes the x value or t value in this case is the amount of months passed. The f(t) is the amount of people who stay in treatment for t months
Which of the listed numbers are t values and which are f(t) values. What are these x-values you speak of?

##### New member

Which of the listed numbers are t values and which are f(t) values. What are these x-values you speak of?
the t values are the months 0,3,6,9,12. The others are f(t). I know the approximation is right but I don’t know how to answer the question

#### Otis

##### Senior Member
… I assume that there were initially 300 patients.
Jomo, note that the op has been edited.