Asked by Anonymous
Christopher's pennies and quarters total $15.74. If the pennies were replaced by quarters and the quarters were replaced by pennies, then he would have $6.62. How many of each coin does he have?
Answers
Answered by
oobleck
Let
p = # pennies
q = # quarters
Then we know that
p+25q = 1574
25p+q = 662
so,
25(1574-25q)+q = 662
q = 62
check:
24+62*25 = 1574
62+24*25 = 662
p = # pennies
q = # quarters
Then we know that
p+25q = 1574
25p+q = 662
so,
25(1574-25q)+q = 662
q = 62
check:
24+62*25 = 1574
62+24*25 = 662
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.