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Daniel has been saving part of his allowance in a bag every month. The bag containing $2 and $10 notes had a total value of $2148. 18 pieces of $10 notes were exchanged for $2 notes of the same value. In the end, the number of $10 notes was the same as the $2 notes. How many $2 notes were there at first?

 Mar 20, 2021
 #1
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How about you edit your question so that it has no latex (coding) in it,

 Mar 20, 2021
 #2
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Daniel has been saving part of his allowance in a bag every month. The bag contains 2 dollar notes and 10 dollar notes and had a total value of 2148 dollar. 18 pieces of 10 dollar notes were exchanged for 2 dollar notes of the same value. The number of 10 dollar noted was the same as 2 dollar notes. How many 2 dollar notes were there at first?

 Mar 20, 2021
 #3
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You are still being careless, and not putting in the time required to even copy the question properly.

You left out important information.

Melody  Mar 20, 2021
 #4
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Daniel has been saving part of his allowance in a bag every month. The bag contains 2 dollar notes and 10 dollar notes and had a total value of 2148 dollar. 18 pieces of 10 dollar notes were exchanged for 2 dollar notes of the same value. IN THE END The number of 10 dollar noted was the same as 2 dollar notes. How many 2 dollar notes were there at first?

 

Let x be the initial number of 2s and y be the initial number of tens.

 

2x+10y=2148

 

18 tens is equal to 90 twos.

now if I reduce y by 18 I get y-18

and tht means I will then have  x+90   twos.

 

I am told these must be the same so     y-18=x+90

 

I am going to let you figure it out from there.

 Mar 20, 2021

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