Difference between revisions of "2007 AMC 8 Problems/Problem 5"
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== Solution == | == Solution == | ||
| − | + | Let <math>x</math> be the number of weeks. | |
| − | + | Thus, we have the equation <math>50 + 35 + 15 + 16x = 500</math>. | |
| − | + | Simplify, | |
| − | + | <math>100 + 16x = 500</math> | |
| − | The answer is B | + | <math>16x = 400</math> |
| + | |||
| + | <math>x = 25</math> | ||
| + | |||
| + | The answer is <math> \boxed{\textbf{(B)}\ 25} </math> | ||
==See Also== | ==See Also== | ||
{{AMC8 box|year=2007|num-b=4|num-a=6}} | {{AMC8 box|year=2007|num-b=4|num-a=6}} | ||
{{MAA Notice}} | {{MAA Notice}} | ||
Revision as of 11:22, 16 August 2021
Problem
Chandler wants to buy a 
dollar mountain bike. For his birthday, his grandparents
send him 
dollars, his aunt sends him 
dollars and his cousin gives him 
dollars. He earns
dollars per week for his paper route. He will use all of his birthday money and all
of the money he earns from his paper route. In how many weeks will he be able
to buy the mountain bike?
Solution
Let 
be the number of weeks.
Thus, we have the equation 
.
Simplify,
The answer is 
See Also
| 2007 AMC 8 (Problems • Answer Key • Resources) | ||
| Preceded by Problem 4 |
Followed by Problem 6 | |
| 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 AJHSME/AMC 8 Problems and Solutions | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
