Question 1139137
(1) {{{ d + q = 16 }}}
(2) {{{ 10d + 25q = 220 }}} ( in cents )
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(2) {{{ 2d + 5q = 44 }}}
(1) {{{ -2d - 2q = -32 }}}
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{{{ 3q = 12 }}}
{{{ q = 4 }}}
and
(1) {{{ d + 4 = 16 }}}
(1) {{{ d = 12 }}}
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12 dimes and 4 quarters
check:
(2) {{{ 10*12 + 25*4 = 220 }}}
(2) {{{ 120 + 100 = 220 }}}
(2) {{{ 220 = 220 }}}
OK