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Use X and Y to represent the number of $10 and $50 notes respectively. Form 2 equations using the information given. Since there are 4 more $50 notes, the first equation should be Y($50)=X($10)+4. Second equation will be ($50)(Y)+($10)(X)=$380, this is to get the total amount of money. Sub equation 1 into equation 2. Solve for X, to get number of $10 notes.

Date Posted:
2 years ago

It is sec 1 math they dont know simultaneous equation