the answer to the question you are asking will be 3
Answer:
- c(m) = 39.95 +0.35m
- 85 minutes over 500
Step-by-step explanation:
Let m represent the number of minutes used over 500. Then the cost of the cell phone plan is ...
c(m) = 39.95 +0.35m
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For a cost of 69.70, the number of excess minutes can be found by solving ...
69.70 = 39.95 +0.35m
29.75 = 0.35m . . . . . . . . . subtract 39.95
29.75/0.35 = m = 85 . . . . divide by the coefficient of m
The number of minutes of usage over 500 is 85.
Answer:
1,908
Step-by-step explanation:
This can be rewritten as 8.2 - 5.6 so it is easier to solve.
8.2 - 5.6 = 2.6
Hope this helps!
When you divide or multiply by a neg. number you must flip the sign, therefore t>-12 (the 3rd option)
