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?

Hibyegoodnight Mar 20, 2021

#2**0 **

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?

Guest Mar 20, 2021

#4**+1 **

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.

Melody Mar 20, 2021