Tyrone is comparing mobile phone plans. The plans are as follows: Plan A: $95 for unlimited talk time and text messaging. Plan B: $0.10 per minute for talk and $0.05 per text message. Plan C: $20 monthly fee plus $0.05 per minute for talk and $0.05 per text message. Plan D: $45 monthly fee $0.10 per minute for talk and free text messages. If Tyrone talks for 800 minutes each month and uses 1000 text messages, put the phone plans in order from least expensive (top) to most expensive (bottom). NOTE: In the bottom right corner of each question, you will see an option to check answer. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question.

1 answer

To compare the plans, we need to calculate the total cost for each plan based on Tyrone's usage of 800 minutes and 1000 text messages.

Plan A:
Cost = $95 (unlimited talk and text)

Plan B:
Cost = (Cost per minute × number of minutes) + (Cost per text × number of texts)
Cost = ($0.10/min × 800 min) + ($0.05/text × 1000 texts)
Cost = $80 + $50 = $130

Plan C:
Cost = Monthly fee + (Cost per minute × number of minutes) + (Cost per text × number of texts)
Cost = $20 + ($0.05/min × 800 min) + ($0.05/text × 1000 texts)
Cost = $20 + $40 + $50 = $110

Plan D:
Cost = Monthly fee + (Cost per minute × number of minutes)
Cost = $45 + ($0.10/min × 800 min) + (Cost of text messages = free)
Cost = $45 + $80 = $125

Now, let's summarize the total costs:

  • Plan A: $95
  • Plan B: $130
  • Plan C: $110
  • Plan D: $125

Now, let's put the plans in order from least expensive to most expensive:

  1. Plan A: $95
  2. Plan C: $110
  3. Plan D: $125
  4. Plan B: $130

So the final order is:

  1. Plan A
  2. Plan C
  3. Plan D
  4. Plan B