Question 1040177
Let {{{ a }}} = number of weeks to save
$300 at $2.50/wk
Let {{{ b }}} = number of weeks to save
$300 at $4.50/wk
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(1) {{{ 2.5a = 300 }}}
(1) {{{ a = 120 }}}
and
(2) {{{ 4.5b = 300 }}}
(2) {{{ b = 66.67 }}}
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{{{ 120 - 66.67 = 53.33 }}}
She will be able to buy the bike 53 weeks sooner