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lukranit [14]
3 years ago
12

The answer to Number 11 pls help i am stuck on this problem

Mathematics
1 answer:
baherus [9]3 years ago
4 0

Answer:

your answer should be 40

Step-by-step explanation:

plz tell me if im wrong :)

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The ratio of the side lengths of a quadrilateral is 3:3:5:8, and the perimeter is 380cm. What is the measure of the longest side
MariettaO [177]

Answer: The second option (160 cm)

Step-by-step explanation:

1. You can obtain the perimeter of a quadrilateral by adding the lenghts of the sides.

2. You know that the ratio of the side lengths is 3:3:5:8 and the perimeter is 380 centimeters.

3. Therefore, you can write the following expression, where x is an integer:

3x+3x+5x+8x=380

4. Solve for x:

3x+3x+5x+8x=380\\19x=380\\x=\frac{380}{19}\\x=20

5. Therefore, the longest side is:

8x=8*20=160 (160 cm)

5 0
3 years ago
Read 2 more answers
a cylindrical pipe made of metal 3 m long is 3 cm if the internal radius of the pipe is 10 cm what is the volume of metal used i
cricket20 [7]

Answer:

857.766cm^3

Step-by-step explanation:

Given data

Lenght = 3m

Internal radius r = 3m

External radius R= 10m

Volume of pipe= πr^2h

Volume of metal= External - Internal

Volume= πR^2h-πr^2h

Volume= πh(R^2-r^2)

Volume= 3.142*3(10^2-3^2)

Volume= 3.142*3(100-9)

Volume= 9.426*(91)

Volume= 857.766cm^3

Hence the volume of the metal is 857.766cm^3

5 0
3 years ago
1. The neighbors in a rural community get together for a barn-raising. The first step is to build the
yulyashka [42]

Answer:

im 6 so I don't know you should be learning in school not trying to find the easy way out and getting the answers and I'm only 6

4 0
2 years ago
Hmm What's 2⁄3 of 90cm?
posledela

Answer:

Hey there!

2/3 of 90 cm would be 60 cm.

Hope this helps :)

7 0
4 years ago
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Which statement is true about figure DEF?​
Maslowich

Side DF is congruent (the = and ~ symbol) to side DE

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3 years ago
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