Sam has a total of 200 dimes and quarters. If the total value of the coins is $28.10, how many quarters does he have?
2 answers
what is the value of 200 dimes? Subtract the answer from $28.10. How many quarters in your answer?
Hmm. Interesting. But if he has 200 dimes, then he would have 0 quarters. I think the interpretation is supposed to be 200 (dimes and quarters), not (200 dimes) and quarters. Besides, you can't make up $8.10 with just quarters.
How about:
d+q = 200
10d+25q = 2810
d = 146
q = 54
check:
14.60 in dimes + 13.50 in quarters = 28.10
How about:
d+q = 200
10d+25q = 2810
d = 146
q = 54
check:
14.60 in dimes + 13.50 in quarters = 28.10
2 answers