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Andre45 [30]
3 years ago
14

In a class of 30 students, 20 take mathematics, 17 take physics and 2

Mathematics
1 answer:
goblinko [34]3 years ago
8 0
Since 2 don’t take either of the classes you can minus them out of the total giving us 28 students and then 20+17 is 37 that mean 9 of them take both
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The decimal that has the lowest number is the one least likely to occur
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A. 3/13<br><br> B. 10/39<br><br> C. 5/12<br><br> D. 8/13
ELEN [110]
The equation to find P(A and B) is P(A and B)= P(A) x P(B/A). P(B/A) stands for probability of B given A. First we need to find out the P(A). The P(A) is 8/13 because you have 13 marbles total and 8 white marbles. For P(B/A), it is 5/12. This is because there are 5 red marbles and given that A happened, there would only be 12 marbles left in the bag, leaving you with a 5/12 chance of getting a red marble. Now plug it in. 8/13 x 5/12 = 40/156, which simplifies down to 10/39. Thus, B is the answer.
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Step-by-step explanation:

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4 0
4 years ago
Which expression is equivalent to 3√32x^8y^10?
denpristay [2]
<span>
3√(32x^8y^10)
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6 0
4 years ago
Read 2 more answers
An item was sold at a loss of 20%. Had it been sold for Rs 3000more then the profit would have been 10%. What is the cost price
vagabundo [1.1K]

Answer:

Cost Price = Rs 10000

Step-by-step explanation:

Assume:

Cost of the item = x

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Loss = 20% of x = 0.2x

Item sold = x - 0.2x = 0.8x

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Solve:

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x = Rs 3000 ÷ 0.3

x = Rs 10000

3 0
3 years ago
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