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V125BC [204]
2 years ago
11

Lana has a bowl of marbles the bowl contains 5 green marbles,3 red marbles and 2 blue marbles from the bowl one at a time. What

is the probability that lana will select a green marble first, replace the marble, then select a red marble
Mathematics
1 answer:
ivanzaharov [21]2 years ago
5 0

Answer:

3/20

Step-by-step explanation:

5 green marbles,3 red marbles and 2 blue marbles from the bowl = 10 marbles

P( green) = green/total = 5/10 = 1/2

Replace

5 green marbles,3 red marbles and 2 blue marbles from the bowl = 10 marbles

P( red) = red/total = 3/10

P(green,replace, red) = 1/2 * 3/10 = 3/20

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Shishir bought 4000 orange at 70 paisa each. But 400 of them were rotten. He sold 2000 oranges at 90 paisa each.If he plans to m
Ipatiy [6.2K]

Answer:

He needs to sell the rest of the oranges at 75 paisa each.

Step-by-step explanation:

Consider the given information that, Shishir bought 4000 orange at 70 paisa each.

Note: 1 rupees = 100 paisa

Thus, 70 paisa = 70/100 rupees = 0.70 rupees

Therefore, the cost price of 4000 oranges is:

4000×0.70 rupees = 2800 rupees

The selling price of 2000 oranges is:

2000×0.90 rupees = 1800 rupees

The number of oranges now Shishir have:

4000 - 2000 - 400 = 1600

He wants to make a profit of RS 200. Thus the selling price of 4000 oranges should be:

2800 rupees + 200 rupees = 3000 rupees

He earned 1800 rupees by selling 2000 oranges at 90 paisa. So, the remaining amount that he needs to make with 1600 oranges is:

3000 rupees - 1800 rupees = 1200 rupees

Therefore, the cost of one orange is:

1600 oranges = 1200 rupees

1 orange = 1200/1600 rupees

1 orange = 0.75 rupees

Hence, he needs to sell the rest of the oranges at 75 paisa each.

4 0
2 years ago
Joe and Nate went for a walk. The system representing each boy’s progress is graphed below. A graph titled Joe and Nate's progre
Lena [83]

Answer:

A,D E

Step-by-step explanation:

I took the quiz-ur welcome.

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8 0
2 years ago
Is 14 quarter inches the most common measurement
borishaifa [10]
^ if you're talking universally, no it would be cm. But no one really says "quarter inches". You would just say inches
7 0
2 years ago
To bill customers for water usage, one city converts the number of gallons used into units. This relationship is represented by
Anastaziya [24]

We are given equation g = 748u, where g is the total number of gallons of water used and u is the number of units.

We can see that the number of units of water being used by customers.

The number of units of water doesn't depend on the total number of gallons of water used.  

Therefore, the number of units u is an independent variable.

The value of the total number of gallons is totally depends on the number of units used.

Therefore,  the total number of gallons of water used g is a dependent variable.

So, we can conclude following statements:

1) g is the dependent variable.

2) u is the independent variable.

6 0
2 years ago
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Find the percent of change from 2008 to 2012. Round to the nearest tenth of a percent. Is it an increase or decrease?
uranmaximum [27]
2012-2008=4\\\\
\frac{4}{2008}*100\%=\frac{400}{2008}\%=0.2\%\\\\
Percent\ of\ change\ is\ 0.2\%\ and\ it\ is\ increase.
8 0
2 years ago
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