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Unformatted text preview: How far did they travel? 4. A candy store sells boxes of candy containing caramels and crmes. Each box sells for $12.50 and holds 30 pieces of candy (all pieces are the same size). If the caramels cost $0.25 to produce and the crmes cost $0.45 to produce, how many of each should be in a box to make a profit of $3. 5. Jean can paint a room in 5 hours; Liana can do it in 4 hours. How long would it take them working together? 6. An adjustable water sprinkler that sprays water in a circular pattern is placed at the center of a square field with an area of 1568 square feet. What is the shortest radius that can be used if the field is to be completely enclosed within the circle? 7. An object is propelled into the air with an initial velocity of 30 meters per second. The distance s of the object from the ground after t seconds is s = 4.9t 2 + 30t . a. When will the object be 20 meters above the ground? b. When will the object strike the ground?...
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 Fall '08
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