SOLUTION: How much water should be added to 200 milliliters of a 10% salt solution to get a 4% salt solution?
Write a system of equations to find the amount of water needed.
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Write a system of equations to find the amount of water needed.
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Question 860000: How much water should be added to 200 milliliters of a 10% salt solution to get a 4% salt solution?
Write a system of equations to find the amount of water needed.
Graph both equations on the TI calculator and find the intersection point. Report the equations you put in for Y1 and Y2 and your Window settings.
Solve the system using the substitution method. Does this answer match the answer you got on your graphing calculator?
Solve the system using the addition method. Compare your answer to parts b and c.
Which method do you prefer for this problem?
You can put this solution on YOUR website! You might expect the percents to be as weight per volume. How to develop the equations for this mixture is found in the lesson, which also solves the system of the two equations:
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