Posted by Angie on Monday, March 14, 2011 at 5:09pm.
Bill and Rosa have only nickels and dimes. Rosa has 75 cents and Bill has 90 cents. Each has the same number of coins and Bill has the same number of dimes as Rosa has nickels. How many nickels does Rosa have?

math  Reiny, Monday, March 14, 2011 at 5:56pm
If "each has the same number of coins and Bill has the same number of dimes as Rosa has nickels", then
obviously Bill will have to have the same number of nickels as Rosa has dimes
Bill: number of dimes x , number of nickels y
Roas: number of dimes y , number of nickels x
Bill equation: 10x + 5y = 90
Rosa equation: 10y + 5x = 75
I would double one of them and subtract, easy after that.

math  Karen, Monday, March 14, 2011 at 7:05pm
i dnt get ti ...this is so cionfusing

math  Sean, Sunday, November 11, 2012 at 10:07pm
Bill has 7 dimes and 4 nickels
Rosa has 7 nickels and 4 dimes
Answer This Question
Related Questions
 ALGEBRA  Mae open her coin purse and found pennies,nickels and dimes with a ...
 Math  there are some nickels and dimes in a jar. the number of nickels is one ...
 Algebra 2  Adding 1 to which digit will increase 736,419 by ten thousand? i ...
 Math  Ruthie has 10 coins, all either nickels, dimes, or quarters. She has N ...
 math  Joe has a collection of nickels and dimes that is worth $6.20. If the ...
 math  Joe has a collection of nickels and dimes that is worth $8.55. If the ...
 Math  Joe has a collection of nickels and dimes that is worth $6.05 if the ...
 Algebra  Anne has 20 coins in her pocket consisting of nickels and dimes only. ...
 Math  A candy machine contains 5 times the number of nickels in dimes and is ...
 math algebra 1  There are 4 times as many nickels as dimes in a coin bag. The ...
More Related Questions