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zloy xaker [14]
3 years ago
14

Translate the sentence into an equation. Twice the sum of a number and 5 equals 8

Mathematics
1 answer:
Mumz [18]3 years ago
4 0
Colten worked 5 days a week witch working 4 more weeks equals 8 days total
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A function is represented by these ordered pairs.
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answer: 4

Step-by-step explanation:

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48/100 simplest form
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The numerator and denominator can be divided by 4 to get 12/25.

48 / 4 = 12
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A certain brand of dinnerware set comes in three colors: red, white, and blue. Twenty percent of customers order the red set, 45
denis23 [38]

Answer:

a) 0.20

b) 0.45

c) 0.65

d) Yes

e) Yes

f) Z = X + Y (except when X = 1 and Y = 1)

This is because the successes of X and Y are mutually exclusive events but their failures aren't. X and Y cannot both be 1.

Step-by-step explanation:

Probability of a red set = 20% = 0.20

Probability of a white set = 45% = 0.45

Probability of a blue set = 35% = 0.35

Probability of the single set being a red or white set = 20% + 45% = 65% = 0.65

P(X=1) = 0.20, P(X=0) = 1 - 0.2 = 0.80

P(Y=1) = 0.45, P(Y=0) = 1 - 0.45 = 0.55

P(Z=1) = 0.65, P(Z=0) = 1 - 0.65 = 0.35

a) pX = P(X=1) = 0.20

b) pY = P(Y=1) = 0.45

c) pZ = P(Z=1) = 0.65

d) Since only one order is being considered at a time, it isn't possible to order red & white set in a single set, hence, both X and Y cannot both be successes (equal to 1) at the same time. But they can both be failures (both equal to 0) if a blue set is ordered. The successes of X and Y are mutually exclusive events but their failures aren't

e) Is pZ = pX + pY

pX = 0.2, pY = 0.45, pZ = 0.65

Hence, this statement is correct!

f) Z = X + Y

Let's check all the probabilities

when X = 1 and Y = 1, Z = 1

1 ≠ 1 + 1

when X = 0 and Y = 1, Z = 1

1 = 0 + 1

when X = 1 and Y = 0, Z = 1

1 = 1 + 0

when X = 0 and Y = 0, Z = 0

0 = 0 + 0

Hence, Z = X + Y (except when X = 1 and Y = 1)

This is because the success of X and Y are mutually exclusive events but their failures aren't.

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3 years ago
The two dot plots below show the number of the miles run by 14 students at the beginning and end of the school year. complete th
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Answer:

Start of the year: 77 End of the year: 87

Step-by-step explanation:

1 dot equals the number represented below, so I multiplied up to the answers for both! (Hope you pass ur test :D)

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If 3x + 4y = 5, and x - y = 1, then what is y and x?
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I hope this helps you 4×[x-y=1] 4x-4y=4 3x+4y+4x-4y=5+4 7x=9 x=9/7 9/7-y=1 y=9/7-1 y=2/7
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