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Rus_ich [418]
3 years ago
7

cone A has a height of 3 meters and radius of 2 meters. Cone B has the same radius, but height og 6 meters, calculate the volume

of each cone. Which conclusion is correct ? The volume of cone A is twice the volume of cone B, the volume of cone Bis ywice the volume of cone A , The volume of cone B is 4 time the volume of cone A or The volume of cone B is 3 times the volume of cone A?
Mathematics
2 answers:
Alex73 [517]3 years ago
4 0
The volume of Cone B is twice the volume of Cone A.
vodka [1.7K]3 years ago
4 0

Answer:

The volume of cone B is twice the volume of cone A.

Step-by-step explanation:

<u>Cone A</u>

Height of cone = 3 m

Radius of Cone = 2 m

Volume of cone = \frac{1}{3} \pi r^{2} h

                          = \frac{1}{3} \times 3.14 \times 2^{2} (3)

                          = 12.56 m^3

<u>Cone B</u>

Height of cone = 6 m

Radius of Cone = 2 m

Volume of cone = \frac{1}{3} \pi r^{2} h

                          = \frac{1}{3} \times 3.14 \times 2^{2} (6)

                          = 25.12 m^3

Now 12.56 \times 2 = 25.12

Thus the volume of cone B is twice the volume of cone A.

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The space allowed for the mascot on a​ school's Web page is 75 pixels wide by 60 pixels high. Its digital image is 500 pixels wi
anzhelika [568]

Answer:

It will be 60 pixels high and 75 pixels wide

Step-by-step explanation:

\frac{400}{60}=\frac{500}{x}

As

  • The space allowed for the mascot on a​ school's Web page is 75 pixels wide by 60 pixels high
  • Its digital image is 500 pixels wide by 400 pixels high

So, the expression becomes

\frac{400}{60}=\frac{500}{x}

\mathrm{Apply\:fraction\:cross\:multiply:\:if\:}\frac{a}{b}=\frac{c}{d}\mathrm{\:then\:}a\cdot \:d=b\cdot \:c

400x=60\cdot \:500

400x=30000

\mathrm{Divide\:both\:sides\:by\:}400

\frac{400x}{400}=\frac{30000}{400}

\mathrm{Simplify}

x=75

Therefore, it will be 60 pixels high and 75 pixels wide

Keywords: pixel, ratio

Learn more about ratio from brainly.com/question/4287633

#learnwithBrainly

6 0
3 years ago
Kenna's is earning money. The following equation models her earnings: y=55x+1300
labwork [276]

Answer:

In 14 weeks, they will have the same earnings.

Step-by-step explanation:

y = 55x + 1300 -------- (1)

y = 25x + 1720 -------- (2)

(2) = (1)

55x + 1300 = 25x +1720

55x - 25x = 1720 - 1300

30x = 420

30x ÷ 30 = 420 ÷ 30

x = 14

5 0
3 years ago
Help ME!!!! where could you insert parentheses in 310-20/2x5+13 so that the answer would be 130?
tatiyna
310-20(2x5)+13 I think
7 0
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The perimeter of a rectangle is 300 feet. The width of the rectangle is 10 feet more than the length. What is the width of the r
gavmur [86]
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2 years ago
HELP PLS FOR 10 POINTS AND BRAINLIEST TO CORRECT ANSWER The cost, C, to ride in a taxi can be calculated using the function show
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9514 1404 393

Answer:

  A.  $0.85

Step-by-step explanation:

Each time m increases by 1, the cost goes up by $0.85.

The cost per mile is $0.85.

7 0
2 years ago
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