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vlabodo [156]
3 years ago
5

If you have 50 feet of fence, what shape would yield the greatest area in yards?

Mathematics
1 answer:
Vesnalui [34]3 years ago
7 0

Answer:

Square

Step-by-step explanation:

Perimeter of a rectangle is

P=2(l+w)

Where l is length and w is width

Substituting 50 for P

50=2(l+w)

25=l+w

Making w the subject of formula then

w=25-l

Area is lw and substituting for w

A=l(25-l)=-l²+25l

A=-l²+25l

Getting firat derivative of A with respect to l

-2l+25=0

l=25/2=12.5 yards

Width will be 25-12.5=12.5 yards

The dimensions of length and width are same hence the shape is square

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25%. You have:
100% : 260
?% : 65
-> % = (100 x 65)/260 = 25%
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3 years ago
Please help me solve this problem?
Luden [163]

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... (100 -x) = 3(100 -2x)

... 100 -x -3(100 -2x) = 0 . . . . . . subtract the right side

... 5x -200 = 0 . . . . . . . . . . . . . . eliminate parentheses and collect terms

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... x = 40 . . . . . . . . . . . . . . . . . . . add 40

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<u>Check</u>

The amount removed from the first bag is 60 kg. The amount removed from the second is 20 kg. The amount removed from the first bag is 3 times the amount removed from the second bag, as described.


4 0
3 years ago
Need help with this one question, please also try to explain.
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5 0
2 years ago
Read 2 more answers
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Temka [501]
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Answer:what I don’t get it pls explain

Step-by-step explanation:

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