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kozerog [31]
3 years ago
8

A company manufactures aluminum mailboxes in the shape of a box with a half-cylinder top. The company will make 1384 mailboxes t

his week. If each mailbox
has dimensions as shown in the figure below, how many square meters of aluminum will be needed to make these mailboxes? In your calculations, use the
value 3.14 for pi, and round up your answer to the next square meter.
2
m
?
0.4 m
0.2 m
0.55 m. NEED THIS URGENT THANKS
Mathematics
1 answer:
fomenos3 years ago
8 0

Answer: subject?

Step-by-step explanation:

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Can someone solve this for me?
Helga [31]

well, we know it's a rectangle, so that means the sides JK = IL and JI = KL, so

\stackrel{JK}{3x+21}~~ = ~~\stackrel{IL}{6y}\implies 3(x+7)=6y\implies x+7=\cfrac{6y}{3} \\\\\\ x+7=2y\implies \boxed{x=2y-7} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{JI}{6y-6}~~ = ~~\stackrel{KL}{2x+20}\implies 6(y-1)=2(x+10)\implies \cfrac{6(y-1)}{2}=x+10 \\\\\\ 3(y-1)=x+10\implies 3y-3=x+10\implies \stackrel{\textit{substituting from the 1st equation}}{3y-3=(2y-7)+10} \\\\\\ 3y-3=2y+3\implies y-3=3\implies \blacksquare~~ y=6 ~~\blacksquare ~\hfill \blacksquare~~ \stackrel{2(6)~~ - ~~7}{x=5} ~~\blacksquare

5 0
2 years ago
Please please please help me with this assignment :)
Shtirlitz [24]

Answer:

$45.63

Step-by-step explanation:

50,145 cm^{3}  *  2.6 g/cm^3 = 130,377 g\\130,377 g = 130.377 kg\\130.377 kg * $0.35/kg = $45.63\\

or all together    

50,145 cm³  *  2.6 g/cm³ * 0.35/kg =  $45.63

6 0
3 years ago
Derek buys 4 packages of cheese. Each package weighs 5/8 pounds.
Anni [7]
5/8 x 4 = 5/2 = 2 1/2

answer is <span>D. 2 1/2</span>
7 0
3 years ago
The first quartile in a box-and-whisker plot would be located on what number?
astraxan [27]

Answer:

24.5

Step-by-step explanation:

When you round it you get 25. (sorry if im wrong) :(

4 0
3 years ago
what is the volume of the square pyramid with the square base that is 7 centimeters by 7 centimeters and the height is 8 centime
vagabundo [1.1K]

Answer:c

Step-by-step explanation:

i did the test

4 0
3 years ago
Read 2 more answers
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