Hong the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the other (not both). On Friday there were 4 clients who did Plan A and 8 who did Plan B. On Saturday there were 2 clients who did Plan A and 3 who did Plan B. Hong trained his Friday clients for a total of 9 hours and his Saturday clients for a total of 4 hours. How long does each of the workout plans last?

Session A = 1.25 hours

Session B = 0.5 hours

Step-by-step explanation:

Given

Plans: A and B

Friday can be expressed as: 4A + 8B

Saturday can be expressed as: 2A + 3B

Total Time:

Friday = 9 hours

Saturday = 4 hours

Required

Determine time for each session (A and B)

The question illustrates simultaneous equation and the equations are;

Multiply the second equation by 2

Subtract this from the first equation:

Solve for B

Substitute in

Solve for 2A

Solve for A

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

25% is the answer