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____ [38]
3 years ago
11

John plant trees for a living. He has weekly expenses of $425 plus an additional $35 for each tree. If he charges $120 for each

tree he plants, how many trees does he have to plant each week before he can make a profit?
Mathematics
2 answers:
Gelneren [198K]3 years ago
5 0
Your answer is 3, hope this helps
Mars2501 [29]3 years ago
4 0
<span>3*120+3*35=360+105=465 
He needs to plant 3 trees to make a profit.</span>
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3 years ago
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Andrej [43]

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7 0
2 years ago
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vfiekz [6]

Answer:

846.06 units

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We need to find out the maximum amount of profit  the company can make.

For maximum profit put dy/dx = 0

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\dfrac{d}{dx}(-4x^2 + 183x- 1247)=0\\\\-8x+183=0\\\\x=\dfrac{183}{8}\\\\x=22.87

Put x = 22.87 in equation (1). So,

y = -4(22.87)^2 + 183(22.87)- 1247\\\\=846.06

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20=v+-7

20=v-7            

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