Question

1. a coffee shop charges $1.50 for each coffee. what equation models the total cost c for n coffees?

a. $c = n + 1.5$
b. $c = 1.5 + n$
c. $c = 1n + 1.5$
d. $c = 1.5n$

Explanation:

Step1: Define cost per coffee

Cost per coffee = $\$1.50$

Step2: Relate total cost to quantity

Total cost $C$ = cost per coffee $\times$ number of coffees $n$
$C = 1.5 \times n$ or $C = 1.5n$

Answer:

d. $C = 1.5n$