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geniusboy [140]
4 years ago
5

The optimal depth (d) for catching a certain type of fish satisfies the inequality 28|d – 350| – 7000 < 0. Which solution rep

resents the range of depth that offers the best catch?
A 250 < d < 300
B 100 < d < 600
C 300 < d < 350
D 10 < d < 400
Mathematics
1 answer:
Bess [88]4 years ago
3 0
<span>28|d – 350| – 7000 < 0

add 7000 to each side

</span>28|d – 350|  < 7000
<span>
divide both sides by 28

</span>|d – 350|  < 250

remove absolute value term on left so the right side becomes +/-
d-350 < +/- 250

now add 250 to 350 and subtract 250 from 350

250 +350 = 600
350-250 = 100

answer is: <span>B 100 < d < 600</span><span>



</span>
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