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Mathematics 8 Online
OpenStudy (anonymous):

HELP ME PLEASE I AM FAILING MATH AND I NEED HELP! I WILL MEDAL AND FAN!!!!!!!! 132 ft2 of carpet costs $477.84. What is the cost of the carpet per square foot? 2. Lenny can swim 5 laps every 4 min. How many laps can he swim in 15 min? 3. Which statements are correct interpretations of this graph? Choose exactly two answers that are correct. A. There are 2 g of dietary fiber in every 3 tomatoes. B. There are 3 g of dietary fiber in every 2 tomatoes. C. There are 1.5 g of dietary fiber per tomato. D. There are 0.7 g of dietary fiber per tomato.

OpenStudy (jonnyvonny):

All of these you solve the same way. You want to get a RATE so you can get the answer. For the first one, if 132 sq ft of carpet costs $477.84, simply divide $477.84 by 132 to see how much 1 sq ft of carpet costs: 477.84/132 = 3.62 . One square foot of carpet costs $3.62. If you want further explanation, feel free to pm.

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