Question 1122495
Let {{{ n }}} = the number of dimes
{{{ n+2 }}} = the number of quarters
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{{{ 10n + 25*( n+2 ) = 750 }}} ( in cents )
{{{ 10n + 25n + 50 = 750 }}}
{{{ 35n = 700 }}}
{{{ n = 20 }}}
and
{{{n + 2 = 22 }}}
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She has 20 dimes and 22 quarters
Check:
{{{ 10*20 + 25*22 = 750 }}}
{{{ 200 + 550 = 750 }}}
OK
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