A Photographer and Math
A photographer studio charges a sitting fee of $50 and $10 per enlargement ordered. Right an equation to represent the number of enlargements ordered, n, by a customer if the total cost was $180. Then find the number the number of enlargements ordered.
If n is the number of enlargements ordered, then the total cost is equal to the sitting fee plus cost of enlargements.
Cost of enlargements = number of enlargements ordered times cost per 1 enlargement.
Cost of enlargements = n ×10
Total cost = 50 + 10n
180 = 50 + 10n
180 - 50 = 50 - 50 + 10n
130 = 10n
130/10 = 10n/10
13 = n
The customer ordered 13 enlargements.
Click here to post comments
Join in and write your own page! It's easy to do. How? Simply click here to return to Basic math word problem.
Apr 02, 20 12:05 PM
Find out how to become an operations research analyst if you have a math major.
New math lessons
Your email is safe with us. We will only use it to inform you about new math lessons.