SOLUTION: Hello Sir/Mame, I would be grateful for any assistance regarding the following question. 'In my pocket, I have some 20 cent coins and 50 cent coins. I have seven more 50 cent coin

Question 638399: Hello Sir/Mame, I would be grateful for any assistance regarding the following question.
'In my pocket, I have some 20 cent coins and 50 cent coins. I have seven more 50 cent coins than 20 cent coins and have a total of $16.10. how many of each coin do I have?'
My teacher would like me to use algebra as a replacement of 'Trial and Error'
Thank you!
Sash Lack
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of 20 cent coins
= number of 50 cent coins
given:
( in cents )

You have 18 twenty cent coins and
25 fifty cent coins
check answer:

OK
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