4 quarters in a dollar.
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4(p + q), or 4p + 4q
4 x q=
25Q + 10D = 160 Q + D = 10 ==> 10Q + 10D = 100 Subtract: 15Q = 60 ==> Q = 4, and then D = 6 Check: 4 times 25 cents = $1.00, 6 times 10 cents = 60 cents, sum = $1.60
4/q
q=4k+4uImproved Answer:-If: Q = 4k+4uThen: k = (4u-Q)/-4