The problem requires solvingfor r. Notice in this example that r was left on the right side and thus the computation was simpler. We can rewrite the answer another way if we wish. GRAPHING INEQUALITIES OBJECTIVES Upon completing this section you should be able to: ...
SAT考试备考数学题目7. Systems of linear inequalities word prob
To answer this question, let’s return to our simple example of the box and the stone on a balanced seesaw. If we triple the number of weights on each side (we are multiplying each side by3), the seesaw should still balance. The ‘‘weight value’’ of each side remains equal...
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Notice that x is not the solution to the problem but is Mike's rate of rowing in still water. However, the question asked is "What is the distance from the lodge to the park?" To answer this use either the distance upstream or downstream since they are the same. Using the upstream ...
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(distributive property with variables) 4. Use unit analysis to verify that a variable expression will give a reasonable calculation based on the units in the answer. (4%) (M2E *use unit analysis to solve problems DOK2 MA4 1.6) d. Find the unit rate. e. Given an expression which models...
There are three ways to represent solutions to inequalities: an interval, a graph, and an inequality. Because there is usually more than one solution to an inequality, when you check your answer you should check the end point and one other value to check the direction of the inequality....
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