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shepuryov [24]
2 years ago
7

a coin is tossed , then a number 1-10 is chosen at random.what is the probability of getting heads then a number less than 4?

Mathematics
1 answer:
pogonyaev2 years ago
4 0
Probability of sequences can be calculated by multiplying the chance of the first event by the chance of the second, and so on.

The probability of tossing a coin and getting heads is 50%, or 0.5, and the probability of selecting a number less than four from 1-10 is 40%, or 0.4.

The overall probability can then be expressed as:

0.5 x 0.4 = 0.2 or 20%

There is a twenty percent chance that a heads would be tossed and a number less than four selected.
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Step-by-step explanation:

Let r = red

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let b = blue

r + g + b = 102

r = b + 3

b = g + 6    Subtract 6 from both sides of the equation

b - 6 = g

===================

substitute for red and green

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b + 3 + b + b - 6 = 102

Combine like terms

3b - 3 = 102

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3b - 3 + 3 = 102 + 3

3b = 105

Divide by 3

3b/3 = 105/3

b = 35

======================

r = b + 3

r = 35 + 3

r = 38

=======================

g = b - 6

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