Difference between revisions of "2011 AMC 10A Problems/Problem 1"
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== Solution == | == Solution == | ||
<math>30.5-30 = .5</math> hours which is <math>30</math> minutes. <math>30*10=300</math> cents which is <math>3</math> dollars. <math>100*.05=5</math> dollars. So finally <math>20+3+5=28</math> dollars. <math>\longrightarrow \boxed{\textbf{D}}</math> | <math>30.5-30 = .5</math> hours which is <math>30</math> minutes. <math>30*10=300</math> cents which is <math>3</math> dollars. <math>100*.05=5</math> dollars. So finally <math>20+3+5=28</math> dollars. <math>\longrightarrow \boxed{\textbf{D}}</math> | ||
| + | == See Also =={{AMC10 box|year=2011|ab=A|num-b=First Question|num-a=2}} | ||
Revision as of 10:57, 8 May 2011
Problem 1
A cell phone plan costs 
each month, plus 
¢ per text message sent, plus 
¢ for each minute used over 
hours. In January Michelle sent 
text messages and talked for 
hours. How much did she have to pay?
Solution
hours which is minutes. 
cents which is 
dollars. 
dollars. So finally 
dollars. 
See Also
| 2011 AMC 10A (Problems • Answer Key • Resources) | ||
| Preceded by Problem First Question |
Followed by Problem 2 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AMC 10 Problems and Solutions | ||
