Difference between revisions of "2012 AMC 10B Problems/Problem 7"
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Let <math>x</math> be the number of acorns that both animals had. | Let <math>x</math> be the number of acorns that both animals had. | ||
Revision as of 09:13, 8 January 2018
Problem 7
For a science project, Sammy observed a chipmunk and a squirrel stashing acorns in holes. The chipmunk hid 3 acorns in each of the holes it dug. The squirrel hid 4 acorns in each of the holes it dug. They each hid the same number of acorns, although the squirrel needed 4 fewer holes. How many acorns did the chipmunk hide?
Solution
Let be the number of acorns that both animals had.
So by the info in the problem:
Subtracting from both sides leaves
This is answer choice
See Also
2012 AMC 10B (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 AMC 10 Problems and Solutions |
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