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3 years ago

Could use some help with this math problem. Solve: 4y + 3 = 15.

Mathematics

1 answer:

mamaluj [8]3 years ago

5 0

Answer:

y = 3

Step-by-step explanation:

4y + 3 = 15 First subtract 3 from each side.

4y + 3 - 3 = 15 - 3 The 3 on the left will cancel.

4y = 15 - 3

4y = 12 Divide each side by 4

4y/4 = 12/4 The 4 on the left will cancel because 4/4 = 1

y = 12/4

y = 3

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Fed [463]

Answer:

P(S=k) = (1/35)k

8/21

Step-by-step explanation:

P(S=k) is proportional to k

P(S=k) = ck

Total probability is 1

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Sum of all probabilities =

2c + 3c + 4c + 5c + 6c + 7c + 8c = 1

35c = 1

c = 1/35

P(S=k) = (1/35)k, where k = 2,3,...8

P(1&1):

P(S=2) = 2/35

P(2&2):

P(S=4)/3 = (1/3)(4/35) = 4/105

Because for S=4: (1,3) (2,2) (3,1) and all are equally likely

P(3&3):

P(S=6)/3 = (1/3)(6/35) = 2/35

Because for S=6: (2,4) (3,3) (4,2)

P(4&4):

P(S=8) = 8/35

P(getting doubles = 2/35 + 4/105 + 2/35 + 8/35 = 40/105 = 8/21

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4 years ago

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Ainat [17]

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3 years ago

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Olin [163]

Answer:

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Step-by-step explanation:

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3 years ago

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Anna11 [10]

Answer:

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Step-by-step explanation:

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4 years ago

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Minchanka [31]

Answer:

$A=256\ units^2$

Step-by-step explanation:

The given figure shows a triangular pyramid having 16 units as height. The base of pyramid is triangle.

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$A=\dfrac{1}{3}bH$

Where

b is the area of base

$A=\dfrac{1}{3}\times \dfrac{1}{2}\times B\times h\times H\\\\=\dfrac{1}{6}\times 12\times 8\times 16\\\\=256\ units^2$

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7 0

3 years ago