Texas Instruments TI-89 Titanium User Manual page 761

6. Solve for
eq2
speed of the boat.
solve(eq2,b)
7. Substitute the known value of
and solve
eq1
speed of the eastward traveling current.
solve(eq1,a) | b
The boat travels at a speed of 22.7 knots, and
the water current is approximately 7.9 knots.
Activities
to calculate the actual
b
b
for to determine
a
into ,
eq1
, the
a
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