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ExtremeBDS [4]
2 years ago
10

In a jar, the numbers of white, black and red marbles are in ratio of 5:11:8. If the total number of marbles is 144, then how ma

ny red marbles are there?
Mathematics
2 answers:
iris [78.8K]2 years ago
5 0

Answer:48 red marbles

Step-by-step explanation:

144÷24= 6

6*5= 30 white

6*11= 66 black

6*8= 48 red

Helen [10]2 years ago
3 0

Answer:  The number of red marbles in the jar is 48.

Step-by-step explanation:  Given that the number of white, black and red marbles in a jar are in the ratio 5 : 11 : 18. And the total number of marbles in the jar is 144.

We are to find the number of red marbles in the jar.

Let, 5x, 11x and 8x be the number of white, black and red marbles in the jar.

Then, according to the given information, we have

5x+11x+8x=144\\\\\Rightarrow 24x=144\\\\\Rightarrow x=6.

Therefore, the number of red marbles will be

8x=8\times6=48.

Thus, there are 48 red marbles in the jar.

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A. Every month Population will increase by a factor of 0.84%.

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<u>Step-by-step explanation:</u>

Here, we have  number of employees in a company has been growing exponentially by 10% each year. So , If we have population as x in year 2019 , an increase of 10% in population in 2020 as  x + \frac{x}{100}\times10 which is equivalent to \frac{11x}{10}.

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