Question

halim has 4 more $50 notes than $10 notes in his wallet. if the total value of the notes is $380, how many $10 notes does halim have?​

Answer 1

Answer:

Let x = # of $50 bills

Let y = # of $10 bills

x = 4+y

50x + 10y = 380

substitute 4 + y for x

50(4+y) + 10y = 380

200 + 50y + 10y = 380

Solve for y to find # of 10 dollar bills.

Answer 2

Answer:

Let x = # of $50 notes

Let y = # of $10 notes

x = 4+y

50x + 10y = 380

substitute 4 + y for x

50(4+y) + 10y = 380

200 + 50y + 10y = 380

Solve for y to find # of 10 dollar notes.

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