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Leo has 4.80 in dimes and quarters He has 6 more dimes than quarters How many quarters does he have?
Work in cents... 10D + 25Q = 480 and D = Q + 6Substitute: 10(Q + 6) + 25Q = 48010Q + 60 + 25Q = 48035Q = 420Q = 12, making D = 18
Marcy has a total of 100 dimes and quarters if the total value of the coins is 14.05 how many quarters does she have?
Work in cents...10D + 25Q = 1405 and D = 100 - QSubstitute: 10(100 - Q) + 25Q = 1405ie 1000 - 10Q + 25Q = 1405ie 15Q = 405so Q = 27, making D = 73
6.75 in quarters and dimes he has 8 more dimes than quarters how many dimes and quarters does Ben have?
Work in cents...10D + 25Q = 675 and D = Q + 8Substitute: 10(Q + 8) + 25Q = 675ie 10Q + 80 + 25Q = 675ie 35Q = 595so Q = 17, making D = 25
A jar contains 55 quarters and dimes The total value of the coins is 8.50 How many quarters and dimes are there all together?
Work in cents...10D + 25Q = 850 and D = 55 - QSubstitute: 10(55 - Q) + 25Q = 850ie 550 - 10Q + 25Q = 850ie 15Q = 300so Q = 20, making D = 35
You have 9.45 in quarters and dimes in your pocket The number of dimes is 18 less than twice the number of quarters How many of each do you have in your pocket?
d = 2q - 18; 10d + 25q = 945 10(2q - 18) + 25q = 945 20q - 180 + 25q = 945 45q = 1125 q = 25 You have 32 dimes ($3.20) and 25 quarters ($6.25)
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