Question 1050247
Let {{{ t }}} = Jim's schedualed flight
time in hrs
Let {{{ d }}} = his distance to the carrier
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(1) {{{ d = 90*( t - 1 ) }}}
(2) {{{ d = 80*( t + 1 ) }}}
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By substitution:
(2) {{{ 90*( t-1 ) = 80*( t+1 ) }}}
(2) {{{ 90t - 90 = 80t + 80 }}}
(2) {{{ 10t = 170 }}}
(2) {{{ t = 17 }}}
The schedualed flight time is 17 hrs
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check:
(1) {{{ d = 90*( t - 1 ) }}}
(1) {{{ d = 90*( 17 - 1 ) }}}
(1) {{{ d = 90*16 }}}
(1) {{{ d = 1440 }}}
and
(2) {{{ d = 80*( t + 1 ) }}}
(2) {{{ d = 80*( 17 + 1 ) }}}
(2) {{{ d = 80*18 }}}
(2) {{{ d = 1440 }}}
OK