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# ACCORDING TO FIDELITY INVESTMENT VISION MAGAZINE

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Author: Joyce Buda
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According to Fidelity Investment Vision Magazine, the average weekly allowance of children varies directly as their grade level.  In a recent year, the average allowance of a 9th-grade student was 10.24 dollars per week.  What was the average allowance of a 4th-grade student?
7)  The stopping distance, d, of a particular car after the brakes are applied varies directly as the square of the rate, r.  If the car is travelling 30 mph, it can stop in 60 feet.  How many feet will it take the same car to stop when it is travelling 60 mph?
8) If there are 215 sophomores at a local high school and 27 more boys than girls, how many boys are in the sophomore class?  How many girls are in the sophomore class?

9)  A family drove to a resort at an average speed of 30 mph and later returned over the same road at an average speed of 50 mph.  Find the distance to the resort if the total driving time was 8 hours.

10)  Jackie would like to have at least \$150,000 saved for her daughter’s college education.  If she invests \$40,000 in an education account paying 4.15% interest compounded quarterly, will she reach her goal in 18 years?  Show all work to justify your answer and include appropriate units.

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