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3 years ago

A cabin has room for seven campers and two counselors. How many cabins are needed for a total of 49 campers and 14 counselors?

Mathematics

2 answers:

navik [9.2K]3 years ago

7 0

7 cabins are needed.

adelina 88 [10]3 years ago

5 0

The answer is 7 because each camper holds 7 campers and 2 so there for 7 times 7 is 49 and 7 times 2 is 14

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A right cylinder has a radius of 6 m and a surface area of 84 m². Find the surface area of a similar cylinder with a radius of 2

dlinn [17]

Answer:

The surface area of the second cylinder is equal to $9.33\ m^{2}$

Step-by-step explanation:

we know that

If two figures are similar then

the ratio of their surfaces areas is equal to the scale factor squared

Let

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Step 1

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3 years ago

a radioactive sample contains 3.00 g of pure 11c, which has a half-life of 20.4 min. (a) how many moles of 11c are present initi

sveta [45]

The number of mole of pure 11C (carbon-11) initially present is 0.2727 mole

<h3>Description of mole </h3>

The mole of a substance is related to it's mass and molar mass according to the following equation

Mole = mass / molar mass

With the above formula, we can obtain the number of mole of pure 11C. Detail below:

<h3>How to determine the mole of 11C</h3>

From the question given, the following data were obtained:

Molar mass of 11C = 11 g/mol
Mass of 11C = 3 g
Mole of 11C =?

Mole = mass / molar mass

Mole = 3 / 11

Mole = 0.2727 mole

Therefore, the number of mole of pure 11C initially present is 0.2727 mole

Learn more about mole:

brainly.com/question/13314627

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