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tabocampos1414
tabocampos1414
29.03.2020 • 
Mathematics

^Challenge^. A cell phone plan costs $27.70 per month for 800 minutes of talk time. It costs an
additional $0.05 per minute for each minute over 800 minutes. To get e-mail access, it costs 10% 0
the price for 800 minutes of talk time. Your bill, which includes e-mail, is the same each month for 7
months. The total cost for all 7 months is $234.29. Write and solve an equation to find the number
minutes of talk time you use each month.

Let m represent the number of minutes over 800 minutes each month. Which equation represents the given
situation?

A 234.29 = 7(m + 27.70)
B. 234.29 = 7(0.05m +27.70+ 0.10(27.70))
C. 234.29 = 7(m + 27.70 +0.90(27.70))
D. 234.29 = 7(0.05m +27.70)
You use _? minutes of talk time each month.?

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