SOLUTION: An ultralight plane had been flying for 40 min when a change of wind direction doubled its ground speed. The entire tirp of 160 mi took 2 h. How far did the plane trvel druing the

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Question 57407This question is from textbook Algebra: Structure and Method
: An ultralight plane had been flying for 40 min when a change of wind direction doubled its ground speed. The entire tirp of 160 mi took 2 h. How far did the plane trvel druing the first 40 min? This question is from textbook Algebra: Structure and Method

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
160=40X+80*2X
160=40X+160X
200X=160
X=160/200
X=.8
PROOF
40*.8=32 MILES TRAVELED DURING THE FIRST 40 MINUTES.
80*1.6=128 MILES
32=128=160 MILES