Question 1041407
I'll try the 1st one
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Let {{{ d }}} = the distance in miles train A travels until they meet
{{{ 40 - d }}} = the distance in miles train B travels until they meet
Let {{{ t }}} = time in hrs until they meet
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Equation for train A:
(1) {{{ d = 45t }}}
Equation for train B:
(2) {{{ 40 - d = 65t }}}
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The correct answer is (d)