Total distance = 3km
Total distance left to walk = 3km - 500m - 1050m
Total distance left to walk = 3000m - 500m - 1050m
Total distance left to walk = 1450m
Total distance left to walk = 1.45km
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Answer: PJ needs to walk another 1.45km.
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Never,because obtuse angle is an angle measuring between 90 and 180
and if an angle measures 180 then it is a straight angle
Because the numbers are going to be squared the order doesn't matter so the answer would be
(25000-f)(.03)+.05f=1100
750-.03f+.05f=1100
750+.02f=1100
.02f=350
f=$17500
So Mary invested $17500 @ 5% and 7500 at 3% to earn $1100 in interest.
