Sofia advertises her business online. She pays a fixed amount to the advertising company and also pays based on how many times her advertisement is displayed. In March, Sofia paid a fixed fee of $24 and a total fee of $80. Her advertisement was displayed a total of 800 times. What is the rate, in dollars per time her advertisement is displayed, that Sofia is charged?
Answers
Given:
Fixed Fee = $24
Total Fee paid = $80
Number of times the advertisement was displayed = 800
To Find:
The Rate for display
Solution
Form the equation:
Let x be the display fee each time.
Let y be the number of times the advertisement is displayed.
Fixed Fee = $24
Variable Fee = $x
Number of times = y
Equation:
Total Cost = 24 + xy
Solve x:
Given that the total cost is $80 and it was displayed 800 times
80 = 24 + 800x
800x = 56
x = $0.07
Answer: The rate is $0.07 per time her advertisement is displayed.
Question:
Sofia advertises her business online. She pays a fixed amount to the advertising company and
also pays based on how many times her advertisement is displayed. In March, Sofia paid a
fixed fee of $24 and a total fee of $80. Her advertisement was displayed a total of 800 times.
What is the rate, in dollars per time her advertisement is displayed, that Sofia is charged?
(A) $0.03
(B) $0.07
(C) $0.10
(D) $0.13
Solution:
Sofia paid fixed amount = $24
Total fee she paid in March = $80
Amount paid for advertisements = $80 - $24 = $56
Advertisement was displayed 800 times.
Rate in dollars per time her advertisement is displayed = 56/800 = $0.07
Sofia is paying $0.07 per time her advertisement is displayed.
(B)$0.07 is the correct answer.