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annetteaudc
03.02.2020 •
Mathematics
Captain jim is going to load his pirate ship with barrels. he has room for 12 barrels. he has allotted for 103 pounds of barrels on his ship. he can choose from 8-pound barrels (the variable a) or 11-pound barrels (the variable b). which equations would be a constraint to captain jim maximizing his barrel load?
8a = 103 − 11b
8a = 103 + 11b
a − b = 12
a = 12 + b
Solved
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Ответ:
So the total of barrels is : a + b = 12 so the third option is wrong and the last one should have subtracted b from 12
The total equation is 8a + 11b = 103. Similarly, they should subtract 11b from 103. So the second is out and A is CORRECT
Ответ:
The solution is
and ![x=-0.5](/tpl/images/0469/3875/bfc2f.png)
Step-by-step explanation:
The expression is![2x(x+1.5)=-1](/tpl/images/0469/3875/84591.png)
Multiplying the term
by
, we get,
Adding both sides by 1,
Taking factor, we get,
Equating the factors to 0,
Thus, the smaller value is![x=-1](/tpl/images/0469/3875/66413.png)
The solution is
and ![x=-0.5](/tpl/images/0469/3875/bfc2f.png)