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Chapter 5: Q. 68 (page 596)
A marketing company surveys 1,200 people. They surveyed twice as many females as males. How many males and females did they survey?
They surveyed 400 males and 800 females.
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LaVelle is making a pitcher of caffe mocha. For each ounce of chocolate syrup, she uses five
ounces of coffee. How many ounces of chocolate syrup and how many ounces of coffee does she need to make 48 ounces of caffe mocha?
In the following exercises, translate to a system of equations and solve.
Carol invested $2560 into two accounts. One account paid 8% interest and the other paid 6% interest. She earned 7.25% interest on the total investment. How much money did she put in each account?
In the following exercises, translate to a system of equations and solve.
A cashier has 54 bills all of which are \(10 or \)20 bills. The total value of the money is $910. How many of each type of bill does the cashier have?
Graph the inequality . How do you know which side of the line should be shaded?
In the following exercises, translate to a system of equations and solve.
Two angles are complementary. The measure of the larger angle is twelve less than twice the measure of the smaller angle. Find the measures of both angles.
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