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liraira [26]
3 years ago
6

An elevator can hold up to 400 lb. A delivery man weighs 2 O lb and has to

Mathematics
1 answer:
Gennadij [26K]3 years ago
7 0

Answer:

400- (200 + 41P) = E

Step-by-step explanation:

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The town librarian bought a combination of new-release movies on DVD for $20 and classic movies on DVD for $8. Let x represent t
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Step-by-step explanation:

4 0
3 years ago
shaquana has a deck that measures 18 feet by 15 feet. She wants to increase each dimension by equal lengths so that its area tri
Svetach [21]

to increase each dimension by equal lengths so that its area triples is 12 feet.

The given dimensions are 18 feet by 15 feet.

We need to find how much should each dimension increase.

Shaquana wants to increase each dimension by equal lengths so that its area triples.

Let the increased length be x.

So, length =18+x feet and width=15+x feet.

As we know, the area of a deck=Length×Width

The original area of a deck=18×15=270 square feet.

Now, the new area of a deck=(18+x )×(15+x)=3×270

⇒270+15x+18x+x²=810 square feet

⇒x²+33x-540=0

Here, a=1, b=33 and c=-540 in x=\frac{-b\±\sqrt{b^{2-4ac} } }{2a}.

⇒x=\frac{-33\±\sqrt{33^{2} -4 \times (-540)} }{2 \times 1}

⇒x=\frac{-33\±\sqrt{1089 +2160} }{2 \times 1}=\frac{-33\±57}{2}

⇒x=-45 or x=12

Length can not be a negative integer.

Therefore, to increase each dimension by equal lengths so that its area triples is 12 feet.

To learn more about the area of a rectangle visit:

brainly.com/question/20693059.

#SPJ1

6 0
1 year ago
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The blue area on the graph are all the possible solutions. The chili beans need to be less than 3 and the corn husks need to be less than 7

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2 years ago
How long will it take to earn $252 in interest if $1200 is invested at a 7% annual interest rate?
scoray [572]
T=i/pr
t=252/(1200*0.07)
t=3 years
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3 years ago
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