Can someone help me with this word problem for system of equations..

-------------

Carter found pennies and quarters in his advisory penny war jug. There was a total of 40 coins. When he counted the money in the jug, it totaled $6.40. How many quarters were in the jug?

-----
I really just need help with the equations

Question

Can someone help me with this word problem for system of equations..

-------------

Carter found pennies and quarters in his advisory penny war jug. There was a total of 40 coins. When he counted the money in the jug, it totaled $6.40. How many quarters were in the jug?

-----
I really just need help with the equations

anonymous · Answer

@nerd94 @party_girl

anonymous · Answer

Ok, so state the information from the question that you know is important, and then ignore the rest of the question.

anonymous · Answer

Okay so this is what I think they are but I don't know 
x-y=40
x+y=$6.40

anonymous · Answer

I think that this will help you a lot: https://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/fast-systems-of-equations/e/systems_of_equations