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hjlf
3 years ago
14

Micheal has a sink that is shaped like a half-sphere. The sink has a volume of 3000/3π in^3. One day, his sink is clogged. He ha

s to use one of two cylindrical cups to scoop the water out of the sink. The sink is completely full when Micheal begins scooping.
A) One cup has a diameter of 6 in and a height of 8 in. How many cups of water must micheal scoop out of the sink with this cup to empty it? Round the number of scoops to the nearest whole number.

B) One cup has a diameter of 10 in and a height of 8 in. How many cups of water must micheal scoop out of the sink with this cup to empty it? Round the number of scoops to the nearest whole number.
Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
3 0

Answer:

A is 27 i think and B is 15 i think

Step-by-step explanation:

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Margaret [11]

Answer:

The number of boys last year will be 50 boys

Step-by-step explanation:

330 members with 240 adults

The number of children will be;

330-240 = 90

2/3 of 90 are boys

= 2/3 * 90 = 60 boys

Number of girls is 90-60 = 30

Ratio of adults:boys:girls

= 240:60:30

divide through by 30

= 8:2:1

b) A year ago, there were 200 adults but the ratio still remains same

Let the number of girls be x, the number of boys will be 2x

Thus, total number is 200 + x + 2x = 200 + 3x

Total ratio is 8 + 2 + 1 = 11

mathematically;

8/11 * (200 + 3x) = 200

8(200 + 3x) = 11(200)

1600 + 24x = 2200

24x = 2200-1600

24x = 600

x = 600/24

x = 25

So the number of boys will be 25 * 2 = 50

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3 years ago
A cyclist travels 3 miles in 15 minutes and then a further 7 miles in 25 minutes without stopping.
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Answer:

15 mph

Step-by-step explanation

i used a calculator but correct me if im wrong pls

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4 4/5. Check the linked photo for some explanation.

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Can any one please help me in number 4 please I really need help please
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Step-by-step explanation:

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