SOLUTION: I don't really know if you need the problem I was given so: Adriana has 24 dimes and nickles in a jar. The total value of the coin in the jar is $2.10. How many of each coin doe

Question 547038: I don't really know if you need the problem I was given so:
Adriana has 24 dimes and nickles in a jar. The total value of the coin in the jar is $2.10. How many of each coin does she have?

My class has been working on these type of problems as well as Digit problems for two days. I don't really understand the step after you make he chart, the solving and putting the information from the problem into equations / systems. Just for my own benefit I would really appreciate it if you can draw the chart (if possible) just so I can see if I am doing all the steps correctly. I like to ask a lot of questions, so if asking questions will take up my 5 problems , then please feel free to explain as much as you can. THANK YOU!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Adriana has 24 dimes and nickles in a jar. The total value of the coin in the jar is $2.10. How many of each coin does she have?
-----------
n + d = 24 (number of coins)
5n + 10d = 210 (value of coins)
---------------
n + d = 24
n +2d = 42 (2nd eqn divided by 5)
---------- Subtract
-d = -18
d = 18 dimes
----------
n = 6 nickels

RELATED QUESTIONS
Adriana has 24 dimes and nickels in a jar. The total value of the coins in the jar is... (answered by math_helper)

I don't really get how to solve this problem. Chris has a jar with dimes and quarters... (answered by John10)

I also don't get how to solve this problem. It would be appreciated if you can show the... (answered by ankor@dixie-net.com)

I need help with a word problem. This is what I have so far: Joe has a collection of... (answered by solver91311)

If 4M+N=20 and N+P=20, what is the value of M? A.0 B.4 C.16 D.24 E.It cannot be... (answered by ankor@dixie-net.com,ikleyn)

My question is this: Lotty has $5 in nickles,dimes, and quarters. She has 3 times as many (answered by ankor@dixie-net.com)

Hello :) A collection of 56 coins has a value of $4.00. The collection contains nickles... (answered by scott8148,josmiceli)

A jar has only nickles and dimes. There are three times as many nickles as dimes and a... (answered by addingup)

Here's a problem that after a few hours, I still can't figure out: Jamil has in a jar... (answered by checkley77)