Using the probability concept, considering complementary probabilities, there is a 0.12 = 12% probability that the integer is of 20 or more.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
If two events are complementary, the <u>sum of their probabilities is of 1</u>. In this problem, we have that an integer being less than 20 is complementary to an integer being 20 or more.
We have that:
- There is a 0.88 probability that the number is less than 20.
- There is a x probability that the number is 20 or more.
These events are complementary, hence:
0.88 + x = 1
x = 1 - 0.88
x = 0.12
There is a 0.12 = 12% probability that the integer is of 20 or more.
More can be learned about probabilities at brainly.com/question/14398287
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Answer:
i think its x= 0.75
Step-by-step explanation:
substitute:
8x × 5 = 40x
8x × 10 = 80x
8 × 5 = 40
5 × 10 =50
40x + 80x = 40 + 50
add like terms
so it'd be:
120x = 90
now divide 90 by 120 and that would give you the value of x alone which is 0.75
70/28 = x/250
this however is not an equation it is a proportion so you would not be able to solve using systems of equations but you could use cross multiplication to solve this problem as well
Answer:
Step-by-step explanation:
That would be 23 - 50, or -27.
Next time, please include the answer choices. Thank you.
