Answer:
x = 2
Step-by-step explanation:
Eight less than four times a number is less then 56. What are the possible values of that number?
2 answers:
Answer:
x < 16
Step-by-step explanation:
Hello, great question. These types are questions are the beginning steps for learning more advanced Algebraic Equations.
Firstly, we should convert the question into a numerical function in order to visualize it better. Therefore, the function would look like so,
Even though this is an inequality expression we can solve it like any Algebraic Expression. That being the case lets solve for x by getting x alone on one side.
.... add 8 on both sides
... divide both sides by 4
Finally, we can see that the answer is x < 16
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
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You can extract two balls of the same colour in two different way: either you pick two black balls or two red balls. Let's write the probabilities of each pick in each case.
Case 1: two black balls
The probability of picking the first black ball is 2/5, because there are two black balls, and 5 balls in total in the urn.
The probability of picking the second black ball is 1/4, because there is one black ball remaining in the urn, and 4 balls in total (we just picked the other black one!)
So, the probability of picking two black balls is
Case 2: two red balls
The probability of picking the first black ball is 3/5, because there are three red balls, and 5 balls in total in the urn.
The probability of picking the second red ball is 2/4=1/2, because there are two red balls remaining in the urn, and 4 balls in total (we just picked the other red one!)
So, the probability of picking two red balls is
Finally, the probability of picking two balls of the same colour is