SOLUTION: Please I am in dire need of this answer. it's urgent please. Suppose a car rental company charges $150 for the first day and $100 for each additional or partial day. Let S(x) r

Algebra ->  Linear-equations -> SOLUTION: Please I am in dire need of this answer. it's urgent please. Suppose a car rental company charges $150 for the first day and $100 for each additional or partial day. Let S(x) r      Log On


   

Question 133226: Please I am in dire need of this answer. it's urgent please.
Suppose a car rental company charges $150 for the first day and $100 for each additional or partial day. Let S(x) represent the cost of renting a car for x days. Find the value of S(5.5).
Happy easter.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Since the person has to pay $150 no matter what, this is the fixed cost. Also, since the cost for each day is $100, this is the variable cost. So the equation would follow the form


S(x)=Variable Cost * x + Fixed Cost


So in this case the equation is

S%28x%29=100x%2B150


S%285.5%29=100%285.5%29%2B150 Now plug in x=5.5 to evaluate S(5.5)


S%285.5%29=100%286%29%2B150 Round 5.5 to 6 (remember, it's $100 per day or partial day)

S%285.5%29=600%2B150 Multiply


S%285.5%29=750 Add


So this means that when x=5.5 the cost is $750