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Difference between revisions of "2009 AMC 10A Problems"
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== Problem 4 == | == Problem 4 == | ||
| + | Eric plans to compete in a triathalon. He can average <math>2</math> miles per hour in the <math>\frac{1}{4}</math>-mile swim and <math>6</math> miles per hour in the <math>3</math>-mile run. His goal is to finish the triathlon in <math>2</math> hours. To accomplish his goal what must his average speed in miles per hour, be for the <math>15</math>-mile bicycle ride? | ||
| + | |||
| + | <math>a)\, \frac{120}{11}\qquad | ||
| + | b)\, 11\qquad | ||
| + | c)\, \frac{56}{5}\qquad | ||
| + | d)\, \frac{45}{4}\qquad | ||
| + | e)\, 12</math> | ||
[[2009 AMC 10A Problems/Problem 4|Solution]] | [[2009 AMC 10A Problems/Problem 4|Solution]] | ||
Revision as of 20:57, 11 February 2009
Contents
- 1 Problem 1
- 2 Problem 2
- 3 Problem 3
- 4 Problem 4
- 5 Problem 5
- 6 Problem 6
- 7 Problem 7
- 8 Problem 8
- 9 Problem 9
- 10 Problem 10
- 11 Problem 11
- 12 Problem 12
- 13 Problem 13
- 14 Problem 14
- 15 Problem 15
- 16 Problem 16
- 17 Problem 17
- 18 Problem 18
- 19 Problem 19
- 20 Problem 20
- 21 Problem 21
- 22 Problem 22
- 23 Problem 23
- 24 Problem 24
- 25 Problem 25
Problem 1
One can holds 
ounces of soda. What is the minimum number of cans needed to provide a gallon (128 ounces) of soda?
Solution
Problem 2
Four coins are picked out of a piggy bank that contains a collection of pennies, nickels, dimes and quarters. Which of the following could not be the total value of the four coins, in cents?
Problem 3
Problem 4
Eric plans to compete in a triathalon. He can average 
miles per hour in the 
-mile swim and 
miles per hour in the 
-mile run. His goal is to finish the triathlon in hours. To accomplish his goal what must his average speed in miles per hour, be for the 
-mile bicycle ride?
