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Difference between revisions of "2004 AMC 12A Problems"
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== Problem 1 == | == Problem 1 == | ||
Alicia earns <math> 20</math> dollars per hour, of which <math>1.45\%</math> is deducted to pay local taxes. How many cents per hour of Alicia's wages are used to pay local taxes? | Alicia earns <math> 20</math> dollars per hour, of which <math>1.45\%</math> is deducted to pay local taxes. How many cents per hour of Alicia's wages are used to pay local taxes? | ||
| + | |||
| + | <math>\mathrm {(A)} 0.0029 \qquad \mathrm {(B)} 0.029 \qquad \mathrm {(C)} 0.29 \qquad \mathrm {(D)} 2.9 \qquad \mathrm {(E)} 29</math> | ||
[[2004 AMC 12A/Problem 1|Solution]] | [[2004 AMC 12A/Problem 1|Solution]] | ||
== Problem 2 == | == Problem 2 == | ||
| + | On the AMC 12, each correct answer is worth <math>6</math> points, each incorrect answer is worth <math>0</math> points, and each problem left unanswered is worth <math>2.5</math> points. If Charlyn leaves <math>8</math> of the <math>25</math> problems unanswered, how many of the remaining problems must she answer correctly in order to score at least <math>100</math>? | ||
| + | |||
| + | <math>\mathrm {(A)} 11 \qquad \mathrm {(B)} 13 \qquad \mathrm {(C)} 14 \qquad \mathrm {(D)} 16 \qquad \mathrm {(E)} 17</math> | ||
[[2004 AMC 12A/Problem 2|Solution]] | [[2004 AMC 12A/Problem 2|Solution]] | ||
== Problem 3 == | == Problem 3 == | ||
| + | For how many ordered pairs of positive integers <math>(x,y)</math> is <math>x+2y=100</math>? | ||
| + | |||
| + | <math>\mathrm {(A)} 33 \qquad \mathrm {(B)} 49 \qquad \mathrm {(C)} 50 \qquad \mathrm {(D)} 99 \qquad \mathrm {(E)} 100</math> | ||
[[2004 AMC 12A/Problem 3|Solution]] | [[2004 AMC 12A/Problem 3|Solution]] | ||
Revision as of 12:36, 29 September 2007
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
- 26 See also
Problem 1
Alicia earns 
dollars per hour, of which 
is deducted to pay local taxes. How many cents per hour of Alicia's wages are used to pay local taxes?
Problem 2
On the AMC 12, each correct answer is worth 
points, each incorrect answer is worth 
points, and each problem left unanswered is worth 
points. If Charlyn leaves 
of the 
problems unanswered, how many of the remaining problems must she answer correctly in order to score at least 
?
Problem 3
For how many ordered pairs of positive integers 
is 
?
