Question 420087
Let {{{x}}} = number of matches she won before the weekend
Let {{{y}}} = total number of matches played before the weekend
given:
(1) {{{x/y = .5}}}
(2) {{{ (x + 3)/(y + 4) > .503 }}}
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(1) {{{ x = .5y }}}
and
(2) {{{ (.5y + 3)/(y + 4) > .503 }}}
(2) {{{ .5y^2 + 3y + 2y + 12 > .503 }}}
(2) {{{ .5y^2 + 5y + 11.497 > 0 }}}
(2) {{{ y^2 + 10y + 22.994 > 0 }}}
Just use quadratic equation to solve