Lawrence has a total of 15 five dollar bills and ten dollar bills in his pocket the value of these bills is $100 how many five dollar bills are in Lawrence's pocket

Question

anonymous · Answer

Is this the correct question? The question says he has 15 five dollar bills.

perl · Answer

the wording is odd here

anonymous · Answer

I suspect the question should be interpreted as: Lawrence has a combination of five and ten dollar bills in his pocket, with a total of 15 bills that are worth $100. How many five dollar bills must he have?

anonymous · Answer

Any answer choices? I can figure this out without answer choices, but answer choices would make it easier to solve. @graceeramoss

anonymous · Answer

Pick a possible answer, then figure out what does not work about it, then modify your possible answer to try to improve it.

So, suppose all 15 bills were $10 bills.  You would then have $10 x 15 = $150, which is too much.  So, try replacing one of the $10 bills with a $5 bill:

14 x $10 + 1 x $5 = $145

You can continue this process until you find the answer, or... look to see if you can see a pattern, and use the pattern to skip the answer more quickly.