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2 years ago

How can knowing ths GCF and LCM help you when you add and subtract and multiply fractions

1 answer:

3 0

Knowing the GCF and LCM helps me when me add and subtract and multiply fractions by breaking the numbers in to 2 different sections and looking at my table of contents

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A spinner numbered 1 through 12 is spun. Find the probability that

anastassius [24]

Answer:

$\dfrac{1}{6}$

Step-by-step explanation:

Let A be the event of getting an odd number.

P(A) be the probability of getting an odd number.

Total odd numbers here are 6 i.e. $\{1,3,5,7,9,11\}$

Here, total numbers in the game are 12 i.e $\{1,2,3,....,12\}$ .

Formula for probability of an event E can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

$P(A) = \dfrac{6}{12}\\\Rightarrow \dfrac{1}{2}$

Let B be the event of getting 11.

P(B) be the probability of getting 11.

Total number of possible cases is 1.

$P(B) = \dfrac{1}{12}$

$P(A \cap B)$ is the probability that we get 11 and an odd number.

Possible number of cases = 1

$P(A\cap B) = \dfrac{1}{12}$

P(B/A) is the probability that we get an 11 given that it is an odd number.

$P(B/A) = \dfrac{P(A \cap B)}{P(A)}\\\Rightarrow \dfrac{\dfrac{1}{12}}{\dfrac{1}{2}}\\\Rightarrow \dfrac{1}{6}$

Hence, P(B/A) = $\dfrac{1}{6}$

4 0

3 years ago

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Please help!!!!!!1 5x+y=23

d1i1m1o1n [39]

Answer:

x=4 y=3

Step-by-step explanation:

8 0

2 years ago

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Combine Like Terms: 7X + 3M - 2(2X + 8) + 24 + 8M - X so hard

Elza [17]

Answer:

11M + 2X + 8

Step-by-step explanation:

Hope this helps!! :))

7 0

2 years ago

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Are the two right triangles trs and wuv congruent? If so name the congruence postulate that applies

Nataly_w [17]

Two figures are said to be congruent when they have the same shape and size or if one object is a mirror image of the other object. The right triangles trs and wuv are congruent when they have equal lengths of the sides and having equal sides, angles should as well be equal with the two triangles.

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3 years ago

Give an example of an equation that is true.

bonufazy [111]

Answer:

5 + 4 = 9

Step-by-step explanation:

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3 years ago