Question

It costs $100 to join a fitness center plus monthly fee. You spent $700 last year at the fitness center. How much was the monthly fee? Write and solve an equation to determine the monthly fee. Can someone help write thee inequality formula I am lost! Thanks

Answer 1

we have a fixed cost of $100 (initiation fee) and a variable cost of $25 per month. If n = the number of months, then you can express the cost of membership for n months as: Fixed cost plus variable cost, or...
$100+n($25)
To find the cost of membership for 1 year, you first must convert 1 year into 12 months. Why, because the variable (n) in the above expression stands for the number of months, not years. So, let n = 12 (months) and substitute 12 for n in the expression. The cost of membership for 1 year (12 months) is:

$100+12($25)= $100 + $300 = $400

Answer 2

Thanks

Answer 3

Anytime!!! :D

Answer 4

Question How does the $400 add up to $700 dollars spent last year! Still confused

Answer 5

Sorry did my work wrong here....
So 12x + 100 = 700
12x = 600
x = 50
so the monthly fee is $50

Answer 6

Thx for catching my mistake...

Answer 7

Thanks now it makes sense. Again Thank you