SOLUTION: Solve the modeling problem. Cell Phone Charges: A cell phone service provides communication between two cities. If x represents the number of minutes for the call, where x > 0 , th
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Question 1089393: Solve the modeling problem. Cell Phone Charges: A cell phone service provides communication between two cities. If x represents the number of minutes for the call, where x > 0 , then the function f(x) = 0.75[x] + 1.50 gives the total cost of the call in dollars. Find the cost of a 7.5 minute call. Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! If x represents the number of minutes for the call, where x > 0 , then the function f(x) = 0.75[x] + 1.50 gives the total cost of the call in dollars.
Find the cost of a 7.5 minute call.
:
just replace x with 7.5
f(x) = .75(7.5) + 1.50
f(x) = 5.625 + 1.50
f(x) = 7.125 ~ $7.13 for a 7.5 min call
:
Wasn't that just too easy?!
