Difference between revisions of "2004 AMC 12A Problems"
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== Problem 4 == | == Problem 4 == | ||
+ | Bertha has <math>6</math> daughters and no sons. Some of her daughters have <math>6</math> daughters, and the rest have none. Bertha has a total of <math>30</math> daughters and granddaughters, and no great-granddaughters. How many of Bertha's daughters and grand-daughters have no children? | ||
+ | |||
+ | <math>\mathrm {(A)} 22 \qquad \mathrm {(B)} 23 \qquad \mathrm {(C)} 24 \qquad \mathrm {(D)} 25 \qquad \mathrm {(E)} 26</math> | ||
[[2004 AMC 12A/Problem 4|Solution]] | [[2004 AMC 12A/Problem 4|Solution]] | ||
== Problem 5 == | == Problem 5 == | ||
+ | The graph of the line <math>y=mx+b</math> is shown. Which of the following is true? | ||
+ | |||
+ | {{image}} | ||
+ | |||
+ | <math>\mathrm {(A)} mb<-1 \qquad \mathrm {(B)} -1<mb<0 \qquad \mathrm {(C)} mb=0 \qquad \mathrm {(D)} 0<mb<1 \qquad \mathrm {(E)} mb>1</math> | ||
[[2004 AMC 12A/Problem 5|Solution]] | [[2004 AMC 12A/Problem 5|Solution]] |
Revision as of 12:40, 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 ?
Problem 4
Bertha has daughters and no sons. Some of her daughters have daughters, and the rest have none. Bertha has a total of daughters and granddaughters, and no great-granddaughters. How many of Bertha's daughters and grand-daughters have no children?
Problem 5
The graph of the line is shown. Which of the following is true?
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