# Adjusting Antifreeze through Algebra

Adjusting Antifreeze. Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain this by mixing some pure antifreeze with an appropriate amount of a 40% antifreeze solution. How many quarts of each should she use?

Building a ski ramp. Write an inequality in the variable x for the degree measure of the smallest angle of the triangle show in the figure, given that the degree measure of the smallest angle is at most 30Âº

Car selling. Ronald wants to sell his car through a broker who charges 10% of the selling price. Ronald still owes $11,025.00 on the car. Ronald must get enough to at least pay off the loan. What is the range of the selling price?

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Adjusting Antifreeze. Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain this by mixing some pure antifreeze with an appropriate amount of a 40% antifreeze solution. How many quarts of each should she use?

Let the amount of pure antifreeze taken be x and that of the 40% antifreeze be y.

Then, by data, x + ...

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The expert examines adjusting antifreeze through algebra. Neat, step-by-step solutions are provided.