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Oxana [17]
3 years ago
9

Last Tuesday was silly hat day at Carson's school. Of the 2,000 students at the school, 60% wore a silly

Mathematics
1 answer:
Galina-37 [17]3 years ago
8 0

Answer:

1,200

Step-by-step explanation:

because you take 60% and make it .60 and multiply it by 2,000 and you get 1,200

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Please I need help with this question: 2 + 2d > 6
Aleonysh [2.5K]

d > 2

Step-by-step explanation:

1) Subtract 2 from both sides.

2d > 6 - 2

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2d > 4

3) Divide both sides by 2.

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4) Simplify 4/2 to 2.

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Sveta_85 [38]

Answer:

a. P(X=50)= 0.36

b. P(X≤75) =  0.9

c. P(X>50)=  0.48

d. P(X<100) = 0.9

Step-by-step explanation:

The given data is

x                      25        50       75        100          Total

P(x)                0.16       0.36    0.38    0.10          1.00

Where X is the variable and P(X) = probabililty of that variable.

From the above

a. P(X=50)= 0.36

We add the probabilities of the variable below and equal to 75

b. P(X≤75) = 0.16+ 0.36+ 0.38= 0.9

We find the probability of the variable greater than 50 and add it.

c. P(X>50)= 0.38+0.10=  0.48

It can be calculated in two ways. One is to subtract the probability of 100 from total probability of 1. And the other is to add the probabilities of all the variables less than 100 . Both would give the same answer.

d. P(X<100)= 1- P(X=100)= 1-0.1= 0.9

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3 years ago
Proportional relationships! <br> Need help on!
Jlenok [28]
Direct variation has this equation:

y = kx

where k is the constant of variation

y = -5 ; x = -15

y = kx
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Choice D. y = 1/3 x 
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