Warren weightlifter joined a health club. there was a $40 registration fee and a $27.50 monthly fee. if warren visits the club 3 times a week for a year, what does each workout cost him?

Cost per each workout = $2.57

Step-by-step explanation:

1. Determine the total costs:

Registration fee = $40

As one year has 12 months, Warren goes every month and each month has a fee of $27.50, the costs per year are:

Costs per year = 12*$27.50

Costs per year = 330

Therefore the total costs are:

Total costs = Registration fee + Costs per year

Total costs = $40 + $330

Total costs = $370

2. Find the cost per each workout.

As Warren visits the club 3 times a week for a year and a month has 4 weeks, and a year has 12 months, the calculation will be:

Total time = 3 times a week*4 weeks a month* 12months a year

Total time = 144

So, replacing in the equation you have:

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240