Respuesta :
Answer:
$7.5
Step-by-step explanation:
If Colleen develops 350 pictures (x):
1. If member, cost is:
[tex]0.15x + 10\\=0.15(350)+10\\=62.5[/tex]
2. If not a member, cost is:
[tex]0.2x\\=0.2(350)\\=70[/tex]
Hence, Colleen pays 70 - 62.5 = 7.5 more by not being a member.
Answer:
$7.5.
Step-by-step explanation:
We have been given that Colleen plans to print x pictures from her camera at a drug store.
The difference of cost for non-member and member would be difference of both expressions as:
[tex]0.2x-(0.15x+10)=0.05x-10[/tex]
To find the difference for developing 350 pictures without being member and non-member, we will substitute [tex]x=350[/tex] in expression [tex]0.05x-10[/tex]:
[tex]0.05(350)-10=17.5-10=7.5[/tex]
Therefore, Colleen will pay $7.5, while not being a member and developing 350 pictures.