Posted by Kaloy on .
Mr. R has some money to buy oranges, if he will buy 15 oranges he will need $90 more, if he will buy 10 oranges he will have $60 left. how much money has mr. R?
Please kindly solve this using George Polya method.. guess and check...

Math 
Ms. Sue,
You've already received an answer to this problem.
Now follow the steps outlined in this site.
http://teacher.scholastic.com/lessonrepro/lessonplans/steppro.htm 
Math 
MICHAEL,
MR SANTIAGO AM TRY TO GO IN THE HOMEWEK