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Novosadov [1.4K]
3 years ago
7

Help PLEASEEEEEEEEEEEEEEEEE

Mathematics
2 answers:
dangina [55]3 years ago
6 0

Answer:

B ; Point B

Step-by-step explanation:

NISA [10]3 years ago
5 0

ok to be honest I really don't know

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There are 3/5 girls of the students in a class of 5th graders. If there are 35 students in the class, how many are girls? How ma
NNADVOKAT [17]

Answer:  21/35 girls   14/21 boys

Step-by-step explanation: To find the number of girls, multiply

3/5 × 35 = 21 girls

You can subtract  35-21 to find the number of boys, or multiply

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Realizing that 35/5 = 7, we can multiply

7/7  × 3/5 to get the <em>fractional equivalent of girls  21/35</em>

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3 years ago
Cylinder A has radius r and height h as shown in the diagram. Cylinder B has radius 4r and height 4h. How many times greater is
svetlana [45]

Answer:

  • The surface area of Cylinder B is 16 times the surface area of Cylinder A

Step-by-step explanation:

<u>Note</u>: <em>It is assumed we are looking at  the total surface area (but the answer would be same for both cases)</em>

<h3>Given</h3>

  • Cylinders A with radius - r, height - h,
  • Cylinder B with radius - 4r, height -  4h.

<h3>To find </h3>

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<h3>Solution</h3>

Total surface area of cylinder A is:

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Total surface area of cylinder B is:

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Find the ratio of areas:

  • \cfrac{S_B}{S_A} =\cfrac{32\pi(r+h)}{2\pi(r+h)} =16

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