Finding the Number of Classes Attended Based on Minutes and Cost

[zak100]

Homework Statement

One company offers 45 minute classes at 12$ per class. If the number of minutes Randilf spent during Yoga this month was 132 greater than the number of dollars he paid, how many classes did he attend?

Homework Equations

No standard eq

The Attempt at a Solution

First class = 1-45min
Second class = 45-90 min
Third class less thank 45 minutes
So classes attended is 2 which is not correct. Some body please guide me.

Zulfi.

 

[Ray Vickson]

Homework Statement

One company offers 45 minute classes at 12$ per class. If the number of minutes Randilf spent during Yoga this month was 132 greater than the number of dollars he paid, how many classes did he attend?

Homework Equations

No standard eq

The Attempt at a Solution

First class = 1-45min
Second class = 45-90 min
Third class less thank 45 minutes
So classes attended is 2 which is not correct. Some body please guide me.

Zulfi.

Let N = number of classes he attends. Set up an equation in N and solve it.

 

[Mark44]

First class = 1-45min
Second class = 45-90 min
Third class less thank 45 minutes

?
I don't see what you're trying to do here.

Let N = number of classes he attends. Set up an equation in N and solve it.

Starting with Ray's suggestion, write one expression that represents the number of minutes he was in class, and another that represents the cost for that many classes.

 

[zak100]

Let N= number of classes:
1st eq:
1 class = 45 min
N classes= N * 45 minutes
2nd eq:
45 min = 12$
N * 45 min = N * 12$

Is it correct?

Zulfi.

 

[Ray Vickson]

Let N= number of classes:
1st eq:
1 class = 45 min
N classes= N * 45 minutes
2nd eq:
45 min = 12$
N * 45 min = N * 12$

Is it correct?

Zulfi.

Don't ask---just solve it and check whether your solution satisfies the conditions of the problem.

When you continually ask "is it correct" half-way through a solution (as you do over and over again in many of your threads) you are not developing the necessary confidence in your own abilities. What would you do on an exam, where you cannot ask anyone?

 

[Mark44]

45 min = 12$
N * 45 min = N * 12$

Is it correct?

No.
1) As an equation, 45 minutes does NOT equal $12. The units don't match at all.
2) Your second equation is wrong as well. You are omitting important information in this problem.

Don't ask---just solve it and check whether your solution satisfies the conditions of the problem.

What Ray said...

 

[zak100]

Hi,
Please simplify the prob. I can't understand it.

Don't ask---just solve it and check whether your solution satisfies the conditions of the problem.

I am block.
In my view this is not logical of forum. Right now i am not in exam. And in forum i can interact. For good score I must solve variety of problems. And i need help that's why i posted on forum.Zulfi.

 

[Mark44]

One company offers 45 minute classes at 12$ per class. If the number of minutes Randilf spent during Yoga this month was 132 greater than the number of dollars he paid, how many classes did he attend?

Let N = the number of classes Randilf was in this month.

How many minutes was Randilf in class this month?
How many dollars did Randilf spend for the classes this month?
Are these two numbers equal?
If not, which one is larger, and by how much?