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valina [46]
3 years ago
14

The marks obtained by 90 students of a school in Mathematics out of 100are given below: (i) Find the probability that a student

obtained less than 20% in the mathematics test. (ii) Find the probability that a student obtained marks 60 or above. Marks 0 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - above Total No. of students 7 10 10 20 20 15 8 90 ​
Mathematics
1 answer:
jek_recluse [69]3 years ago
6 0
For the first question could you tell me how many students hade a Mark less that 20%
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What does one inch of rainfall equals to?
avanturin [10]
On average, thirteen inches of snow equals one inch of rain in the US, although this ratio can vary from two inches for sleet to nearly fifty inches for very dry, powdery snow under certain conditions.
3 0
3 years ago
What is the greatest common factor of 60, 45 and 82? HALPPPPPPPPPPPPPPPPPPp
son4ous [18]

Answer:

GCF: 1

Step-by-step explanation:

Factors are numbers that can be evenly divided into another number. The greatest common factor of a set of numbers is the biggest number than can evenly divide into all the the numbers.

Let's list the factors of 60, 45 and 82

Factors of 60:

<u>1</u>, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

Factors of 45:

<u>1</u>, 3, 5, 9, 15, 45

Factors of 82:

<u>1</u>, 2, 41, 82

The greatest factor that all 3 numbers share is 1.

4 0
3 years ago
Read 2 more answers
Is the following number rational or irrational <br><br> -2 π
Firlakuza [10]
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6 0
3 years ago
8.0464x10^-7 = <br> answer in decimal notation
Charra [1.4K]
To convert 8.0464x10^-7 from scientific notation to decimal notation, you need to move the decimal point to the left seven times.
Therefore the answer is:

0.00000080464

Note: 10^-7 equals 1/10^7
8.0464x10^-7 can be rewritten as:
8.0464/10^7 (i.e. divide 8.0464 by 10000000)
which results: 0.00000080464
6 0
3 years ago
Can somebody help me with this it a little hard
vova2212 [387]

The answer to your question is,

A. 7 large buckets and 3 small buckets.

So, a large bucket has 25 that can fit and a small fits 13. Take 214 and divide it by 25. You'd get a decimal number. 8.56. You see, you can't overfill the 8th bucket by another clam, so you would have to downsize it to where the crabs would fit, so that means 8 buckets. Alongside the rest goes into the small buckets.

-Mabel <3

8 0
3 years ago
Read 2 more answers
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