Question

The sequence 3.75, 7.5, 11.25, 15, 18.75, . . . represents the total cost a customer pays at a taqueria based on the number of tacos ordered. This means that the total cost for 1 taco is $3.75, for 2 tacos is $7.50, for 3 tacos is $11.25, and so on. What is the maximum number of tacos that can be ordered if a customer has $100 to spend?(1 point)
Responses

27 tacos
27 tacos

24 tacos
24 tacos

25 tacos
25 tacos

26 tacos

Answers

GPT-4o mini
To determine how many tacos can be ordered for $100, we start with the price per taco. Based on the sequence given (3.75, 7.5, 11.25, ...), we can see that the total cost increases by $3.75 for each additional taco.

We can express the total cost \( C \) for \( n \) tacos as:

\[
C = 3.75n
\]

To find out how many tacos can be purchased with $100, we set up the inequality:

\[
3.75n \leq 100
\]

Now, we can solve for \( n \):

\[
n \leq \frac{100}{3.75}
\]

Calculating this gives:

\[
n \leq 26.6667
\]

Since \( n \) must be a whole number (you can't order a fraction of a taco), we take the maximum whole number less than or equal to 26.6667, which is 26.

Thus, the maximum number of tacos that can be ordered with $100 is **26 tacos**.