x = 4y + 20 x + y = 145
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A student bought a calculator and a textbook from a course in algebra. He told his friend that the cost was $145 without tax and the other calculator caused $25. More than twice the cost of the textbook. What was the cause of each item? Let x = the cost of a calculator and y = the cost of a textbook. The corresponding model line system is x + y=145 x= 3y+25 solve the system by using the method of substitution. Enter the ordered pair below
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A student bought a calculator and a textbook for a course in algebra. He told his friend that the cost $165(without tax) and that the calculator cost $5.00 more than thrice the cost of the textbook. What was the cost of each item? Let x = The cost of the calculator. Let y= the cost of the textbook. The corresponding modeling system is x + y= 165 x= 3y + 5 Solve the system by using the method of substitution Enter the ordered pair below
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A student bought a calculator and a textbook from a course in algebra. He told his friend that the cost was 150 without tax and the other calculator caused $30. More than twice the cost of the textbook. What was the cause of each item? Let x = the cost of a calculator and y = the cost of a textbook. The corresponding model line system x + y = 150 x=2y+30 solve the system by using the method of substitution. Enter the ordered pair below
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