Check whether the given value of x is a solution to the equation.Justify your answer.
Check whether the given value of x is a solution to the equation.Justify your answer.
The total cost of four pens and seven mechanical pencils is $ 13.25. The cost of each pencil is 75 cents. a. Using an arithmetic approach, find the cost of a pen.
The total cost of four pens and seven mechanical pencils is $ 13.25. The cost of each pencil is 75 cents. b. Let the cost of a pen be p dollars. Write an expression for the total cost of four pens and seven mechanical pencils in terms of p.
The total cost of four pens and seven mechanical pencils is $ 13.25. The cost of each pencil is 75 cents. c. Write an equation that could be used to find the cost of a pen.
The total cost of four pens and seven mechanical pencils is $ 13.25. The cost of each pencil is 75 cents. d. Determine a value for p for which the equation you wrote in part (b) is true.
The total cost of four pens and seven mechanical pencils is $ 13.25. The cost of each pencil is 75 cents. e. Determine a value for p for which the equation you wrote in part (b) is false