Colleen plans to print x pictures from her camera at a drug store. The expression $0.2x represents the cost of developing the pictures if she is not a member of the store’s photography club. If she is a member, then the total cost is given by $0.15x + $10. How much more will Colleen pay by not being a member if she develops 350 pictures

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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.