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ser-zykov [4K]
4 years ago
12

Elleanna is planning to join a DVD club and is investigating the options for membership. Option 1 is $20 membership fee $1.25 re

ntal change for each DVD rented. Option 2 has no rental fee and changes $2.50 for each DVD rented. How many DVDs would Elleanna have to rent in order for the total cost of Option 1 to be equal to option 2?
Mathematics
1 answer:
Colt1911 [192]4 years ago
8 0
Option 1 : 20 + 1.25d
option 2 : 2.50d

when will they be equal......so set them equal to each other
20 + 1.25d = 2.50d
20 = 2.50d - 1.25d
20 = 1.25d
20 / 1.25 = d
16 = d.....so they will be equal at 16 dvd rentals
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