Question 1157210

a private plane traveled from seattle to a rugged wilderness at an average of 132 mph. On the return trip, the average speed was 231 mph. If the total traveling time was 6 hours, how far is Seattle from the wideness? 
<pre>Let distance be D
Then we get the following TIME equation: {{{matrix(1,3, D/132 + D/231, "=", 6)}}}
7D + 4D = 5,544 ------ Multiplying by LCD, 924
11D = 5,544
Distance, or {{{highlight_green(matrix(1,4, "5,544"/11, "=", 504, miles))}}}
NOTHING else to this!!