Question 990336
Let {{{ x }}} = cost of 1 cupcake
given:
{{{ 3x + 1.6 = 7x }}}
{{{ 4x = 1.6 }}}
{{{ x = .4 }}}
and
{{{ 3x = 1.2 }}}
{{{ 2*1.6 = 3.2 }}}
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{{{ 1.2 + 3.2 = 4.4 }}}
3 cupcakes and 2 teas cost $4.40
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check:
{{{ 3x + 1.6 = 7x }}}
{{{ 1.2 + 1.6 = 7*.4 }}}
{{{ 2.8 = 2.8 }}}
OK