You have relatives living in United Kingdom and in France. Assume that you have bought the prepaid phone card with the value of $75. Calls to United Kingdom cost 23¢ per minute, while calls to France cost 21¢ per minute.
Write the linear equation in two variables to symbolize number of minutes you can use to call those two locations.
Graph inequality, and explain the possible solution in context of real-life situation.
2. Solve the system of equations algebraically, then show graphically that the results are correct.
(10x+4y=24
(-6x-4y=8 (curly bracket both together)
3. Local store owner pays her employees time-and-a-half for overtime. Which means if the employee works more than 40 hours per week, store will pay him 1.5 times his regular hourly wage of $6.50.
Write and graph the piecewise function which shows the employee's weekly pay, W, as the function of number of hours, h, that employee works.
(b) find how much the employee will be paid if he were to work 50 hours in week.