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3 years ago

The first choice box options are: about the same: much greater for conference a than b: much greater for conference b than a.

Mathematics

1 answer:

marysya [2.9K]3 years ago

3 0

First option: About the same

Second option: Greater for conference A than B

Hope it helps!

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A number is chosen at random from the first 20 integers. Find the probability that the number is a multiple of 3.

Fofino [41]

Answer:

3/10

Step-by-step explanation:

Multiples of 3: 3,6,9,12,15,18

There are 6 in the numbers 1-20

P(multiple of 3) = number of "multiples of 3" / total

= 6/20

=3/10

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3 years ago

Factor 3x^2-3x??????????????

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Answer:

Step-by-step explanation:

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Blake is 7 years older than Heather. In 7 years the sum of their ages will be 55. How old is Blake now?

Andreas93 [3]

Answer:

24 years old

Step-by-step explanation:

Let the age of Blake be x and the age of Heather by y then...

x=7+y

7+x+7+y=55

Notice we are adding additional 7s because the question states "in 7 years"

Simplify the second equation...

7+x+7+y=55

14+x+y=55

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x+y=41

Solve using substitution (substitute 7+y for x since x = 7+y)

7+y+y=41

Combine like terms

2y+7=41

Subtract 7 from both sides

2y=34

Divide both sides by 2

y=17

x=7+17=24

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2 years ago

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navik [9.2K]

Answer:

The dot all the way on the left. The one between 2 and 3 I believe.

Step-by-step explanation:

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Papessa [141]

Answer:

option C is the correct answer because the continents used to be part of a larger supercontinent called Pangea and when the continents split the fossils went with it

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