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rosijanka [135]
3 years ago
13

In a class of 40 students, 30 read

Mathematics
1 answer:
DIA [1.3K]3 years ago
6 0
Ok so 24 of them and that would be ur answer
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A class has 6 boys and 15 girls. What is the ratio of boys to girls
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The answer is 6:15, but if u need to simplify the answer would be 2:5.
4 0
2 years ago
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10. When a rubber ball is dropped from a height, h cm on to a flat concrete floor, it rebounds to 3 5 h cm a height of Given a r
Xelga [282]

Step-by-step explanation:

Let the height above which the ball is released be H

This problem can be tackled using geometric progression.

The nth term of a Geometric progression is given by the above, where n is the term index, a is the first term and the sum for such a progression up to the Nth term is

To find the total distance travel one has to sum over up to n=3. But there is little subtle point here. For the first bounce ( n=1 ), the ball has only travel H and not 2H. For subsequent bounces ( n=2,3,4,5...... ), the distance travel is 2×(3/4)n×H

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2 years ago
The sum of twice a number and 15 is grater the 3
NNADVOKAT [17]

Answer:

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What one of these numbers is not like the others? 25,16,49,63,81
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Which of the Following statements is NOT true?
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Answer:

the statement which is not   true is

~All Irrational Numbers are real Numbers

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