Answer:
60 Cents
Step-by-step explanation:
Ok, let:
Ic=Individual cost of 1 cookie
Tc= Total cost of the box cookies
N=Number of cookies in the box
We need to find the individual cost of each cookie. As you know, if we multiply the individual cost of each cookie by the total number of cookies in the box, we can find the total cost of the cookie box. So:
[tex]I_c*N=T_c[/tex] (1)
Now, we know:
[tex]T_c=9\\N=15[/tex]
Replacing the data in (1)
[tex]I_c*15=9[/tex]
Multiply both sides by 1/15
[tex]I_c=\frac{9}{15}[/tex]
Hence, the individual cost [tex]I_c[/tex] of each cookie is:
[tex]I_c=0.6\$=60\hspace{3}cents[/tex]
