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Mnenie [13.5K]
4 years ago
6

a bag has 7 red marbles 8 blue marbles and 3 black marbles what is the probability of picking a black marble replacing it and th

en picking a red marble
Mathematics
1 answer:
Viktor [21]4 years ago
6 0
1/18 is the probablity of picking a black marble
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Dom josin is paid 18 as a pastry chef for regular 35hours week over rate is 1.5 times regular hourly rate he work 5 overtime hou
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35 times 18 is $630 and 5 hours overtime  times 27 is $135 so you add the 630 and 135 Dom's pay is $765.00

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4 years ago
Make an equation that would equal to 6, numbers u can use is 4,9,1,5
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Write down : 2, +, 3 + 1
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3 years ago
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Elizabeth brought a box of donuts to share. There are two dozen (24) donuts in the box, all identical in size shape and color. T
atroni [7]

Answer:

The probability of selecting two jelly filled donuts in a row is 1.08%.

Step-by-step explanation:

Since Elizabeth brought a box of donuts to share, and there are two dozen (24) donuts in the box, all identical in size shape and color, of which 3 are jelly filled, 6 are lemon filled and 15 are custard filled, and you randomly select one donut eat it and select another donut, to find the probability of selecting two jelly filled donuts in a row the following calculation must be performed:

3/24 x 2/23 = X

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0.01086 = X

Therefore, the probability of selecting two jelly filled donuts in a row is 1.08%.

5 0
3 years ago
A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval for the proportion of homeles
MA_775_DIABLO [31]

Answer:

[0.184, 0.266]

Step-by-step explanation:

Given:

Number of survey n =280

Number of veterans = 63

Confidence interval = 90%

Computation:

Probability of veterans = 63/280

Probability of veterans =0.225

a=0.1

Z(0.05) = 1.645 (from distribution table)

Confidence interval = 90%

So,

p ± Z*√[p(1-p)/n]

0.225 ± 1.645√(0.225(1-0.225)/280)

[0.184, 0.266]

4 0
3 years ago
What is the slope of the line that passes through (3,-7) and (-1,1)
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the slope would be the change in Y over the change in X,

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3 years ago
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