Difference between revisions of "2008 AMC 8 Problems/Problem 7"
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\textbf{(D)}\ 105\qquad | \textbf{(D)}\ 105\qquad | ||
\textbf{(E)}\ 127</math> | \textbf{(E)}\ 127</math> | ||
+ | |||
+ | ==Solution== | ||
+ | Separate into two equations <math>\frac35 = \frac{M}{45}</math> and <math>\frac35 = \frac{60}{N}</math> and solve for the unknowns. <math>M=27</math> and <math>N=100</math>, therefore <math>M+N=\boxed{\textbf{(E)}\ 127}</math>. | ||
==See Also== | ==See Also== | ||
{{AMC8 box|year=2008|num-b=6|num-a=8}} | {{AMC8 box|year=2008|num-b=6|num-a=8}} |
Revision as of 22:03, 24 December 2012
Problem
If , what is ?
Solution
Separate into two equations and and solve for the unknowns. and , therefore .
See Also
2008 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 6 |
Followed by Problem 8 | |
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 |