Members at a yoga school pay $10 per class plus a one time $100 membership fee. non members pay $15 per class. how many classes would a member have to take to save money compared to taking classes as a non-member?

show work

21 classes

Step-by-step explanation:

Let’s set up equations for both memebers and non-members!

Let c = classes

To find how many classes it would take to make the two things even, we set them equal.

10c+100 = 15c

Solving for c,

5c = 100

So c = 20.

Since you need 20 classes to break even, to save money as a member, you need 21 classes.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,