The odds against an event E occurring are 12 to 3. What is the probability of E occurring

2 answers:

6 0

The answer is "12:3." The odds of it happening is 12 to 3.The is the measure of the likelihood that an event will occur.

Hope this helps!

crimeas [40]3 years ago

4 0

To solve this problem you must apply the proccedire shown above:

1. You have that the odds against an event E occurring are 12 to 3. Therefore, you have:

total outcomes=12+3=15

2. Then, you have that the probability of the event E occurring is:

1-12/15=1/5

The answer is: 1/5

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Lana is the oldest of four sisters. Her youngest sister is half her age. The other two sisters are twins $2$ years younger than

vagabundo [1.1K]

Let the youngest sister be n years
Lana will be 2n years, as her youngest sister is half her age
The age of the twins separately will be 2n-2 as they are 2 years younger than Lana
So, the equation looks like this:
n + 2n + 2(2n-2) = 45
Now solve for n:
3n + 4n - 4 = 45
7n - 4 = 45
7n = 49
n = 7
So the youngest sister is 7, Lana is 14 and the twins are 12. 14 + 12 + 12 + 7 =45

8 0

3 years ago

jennifer scored 75 on her quiz last week. this week she scored 90. what was the percent of increase on the quiz score?

Arlecino [84]

Answer:

The answer is a 20% increase

Hope this helps!

Mark me brainliest if I'm right :)

4 0

2 years ago

A triangle has two sides of length 15 cm and 17 cm. Select all the values of its third side that would make it a right triangle

Natali [406]

Answer:

$\sqrt{514} cm$ , 8cm, are both options

Step-by-step explanation:

For a right triangle one can find the length of the longest side by using the Pythagorean theorem. So there are two options I can think of that if the triangle is a right triangle will work. First remember what the Pythagorean theorem is : side a^2+side b^2=hypotenuse^2

The hypotenuse is the longest side of a right triangle. So if the sides that are 15 and 17 cm are not the longest sides then the formula would be:

$15^{2} +17^2=c^2\\15^2+17^2=\sqrt{514}cm$