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My name is Ann [436]
2 years ago
8

two friends share this block of cheese equally. what fraction of the cheese does each child gets? please help

Mathematics
1 answer:
Ratling [72]2 years ago
3 0

Hi!

If you divide something into two pieces, each piece is a <u>half. </u>

<em></em>

<em>Therefore each child gets </em>\frac{1}{2}<em> of the cheese.</em>

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A sphere has a diameter of 12 meters. What is its exact surface area and its exact volume?
Karo-lina-s [1.5K]

Answer:

The exact value of its surface area = 144π m²

The exact value of its volume = 288π m³

Step-by-step explanation:

∵ The diameter of the sphere is 12m

∴ The radius of the sphere = 12 ÷ 2 = 6m

∵ The surface area of the sphere = 4πr²

∴ The surface area = 4 × π × 6² = 144π m²

∵ The volume of the sphere = 4/3 πr³

∴ The volume = \frac{4}{3}\pi (6)^{3} = 288π m³

6 0
3 years ago
Kylie has lemon and watermelon in a ratio of 10:71. How many watermelon does she have if she has 20 lemons
kkurt [141]

Answer:

She will have 142 watermelons

Step-by-step explanation:

First let's put our ratio

10 : 71

Since our lemons are now 20 instead of 10 we will divide 20 by 10 to see how many time we multiplied it by.

20 \div 10

which equals 2

To find our water melon we will multiply it by 2

71 \times 2

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7 0
3 years ago
​(6x2−2x+16​)+​(4x2+7x−55​)
AysviL [449]
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(-2x + 16 + 12) + (7x - 55 + 8)
-2x + 28 + 7x - 47
-2x + 7x + 28 - 47
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So the answer is 5x - 19.

8 0
3 years ago
Factor. w(squared)+18w+81
solong [7]

{w}^{2}  + 18w + 81 \\ (w + 9)(w + 9) \\ or \\ {(w + 9)}^{2}
7 0
3 years ago
I need help with this lol
harina [27]

Answer:

75.2

Step-by-step explanation:

16 x 9.4 = 150.4 / 2 = 75.2

7 0
3 years ago
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