An international phone call costs 200 plus 030 per minute or

An international phone call costs $2.00, plus $0.30 per minute or fractional part of a minute. If x represents the number of minutes of the length of the call, then 2 + 0.30x represents the cost of the call. If Alan has $5.60 to spend on a call, what is the maximum total time he can use the phone?

Solution

Dear Student

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Given

Cost of Call varyitng with length of call with time x( in minutes) = 2 + 0.3 x

Total Amount available with Alan = 5.6$

Maximum length of call possible

2+ 0.3x = 5.6

0.3x = 3.6

x = 12 minutes

Solution => alan can speak for maximum 12 minutes on an international call with available money