Posted by Kaloy on Thursday, August 9, 2012 at 8:27am.
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?

Math  MathMate, Thursday, August 9, 2012 at 8:44am
Let r=amount of money in dollars Mr. R has
and
x=cost of each orange
We will set up the equations
15x=r+90
10x=r60
You can then solve for r and x by the method of elimination, substitution, or comparison.

Math  drwls, Thursday, August 9, 2012 at 8:48am
Buying 5 more oranges costs an extra $150. Therefore they cost $30 each.
Buying ten oranges costs $300 and leaves him with $60. Therefore he started out with $360.
Answer This Question
Related Questions
 Math  Mr. R has some money to buy oranges, if he will buy 15 oranges he will ...
 Algebra  A boy was sent with $2.10 to buy oranges. He found the price 3 cents ...
 Math  Sophia buys an eqaul number of oranges and pears for a party. The oranges...
 MATH  Mr. Davis wants to buy some oranges. He visits a local grocery store and ...
 MATH Help!  Mr. Davis wants to buy some oranges. He visits a local grocery ...
 math  Mr. Davis wants to buy some oranges. He visits a local grocery store and ...
 Math  Mrs Li bought some oranges. She gave 1/2 of them to her sister, 1/4 of ...
 Algebra  If I buy 2 apples and 6 oranges, I will spend $5.60. However, if I buy...
 math  In K&M grocery store, apples are sold in groups of 3 and oranges are sold...
 Algebra  Write a linear system of equations that can be used to solve these ...
More Related Questions