Asked by Sarah
Someone has broken down the material that he has to study into two parts: part A and part B and has, at most, 2 hours
every evening over the next week to study.
He wants to spend at least twice as much time studying for part A as for part B.
Show graphically all the possible combinations of time that Tran can study for each part.
every evening over the next week to study.
He wants to spend at least twice as much time studying for part A as for part B.
Show graphically all the possible combinations of time that Tran can study for each part.
Answers
Answered by
oobleck
a >= 2b
a+b <= 2
if a = 2b, then 3b = 2 or b = 2/3
since a >= 2b, b <= 2/3 and a >= 4/3
If you graph those two lines (in QI, since both a,b >= 0), you can see the various combinations
a+b <= 2
if a = 2b, then 3b = 2 or b = 2/3
since a >= 2b, b <= 2/3 and a >= 4/3
If you graph those two lines (in QI, since both a,b >= 0), you can see the various combinations
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