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max2010maxim [7]
2 years ago
12

Which of the following sets represents a function?

Mathematics
2 answers:
Ira Lisetskai [31]2 years ago
8 0
The answer would be B because to have a function none of the x's can be the same, and we know that it's (x,y) so all of the first numbers are x's
In the first answer choice the x's would be 0,1,3,5,&5 but the 5 is repeated so we toss that answer choice
In answer choice B, the x's are 3,4,&5, so that's a maybe
In C, the x's are 1,5,1,&5 so we know that's not correct because the 5's and the 1's are both repeated
Last but not least, in D, the x's are 5,7,&5, the 5's are repeated so that leaves us with our answer of B. {(0,1), (1,2), (3,4), (5,6), (5,7)}

gogolik [260]2 years ago
5 0
It would be D 
Your welcome ;)
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Tamiku [17]

Answer:

Total amount Silas and Raja has at first = $252

Step-by-step explanation:

Let,

Amount Silas had = x

Amount Raja had = y

According to given statement;

x = 3y       Eqn 1

x-84 = y+42     Eqn 2

Putting value of x from Eqn 1 in Eqn 2

3y - 84 = y+42

3y-y = 42+84

2y = 126

Dividing both sides by 2

\frac{2y}{2}=\frac{126}{2}\\y=63

Putting y = 63 in Eqn 1

x = 63(3)

x = 189

Total amount they had = 189 + 63 = $252

Hence,

Total amount Silas and Raja has at first = $252

8 0
2 years ago
How many boxes can a machine pack in 25 min if the machine packs boxes at a rate of 50 boxes per minute? Enter your answers into
Grace [21]
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3 0
3 years ago
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3/2(x+y)

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Answer:

First, we can write:

x

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3

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¯¯¯¯

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100

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100

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.

¯¯¯¯

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Then we can subtract each side of the first equation from each side of the second equation giving:

100

x

−

x

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324

.

¯¯¯¯

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−

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¯¯¯¯

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x

as follows:

100

x

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1

x

=

(

324

+

0

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¯¯¯¯

24

)

−

(

3

+

0

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24

)

(

100

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1

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x

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324

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0

.

¯¯¯¯

24

−

3

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99

x

=

(

324

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3

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+

(

0

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−

0

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321

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0

99

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321

99

x

99

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99

99

x

99

=

3

×

107

3

×

33

x

=

3

×

107

3

×

33

x

=

107

33

Now, we can convert this improper fraction to a mixed number:

x

=

107

33

=

99

+

8

33

=

99

33

+

8

33

=

3

+

8

33

=

3

8

33

3

.

¯¯¯¯

24

=

3

8

33

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3 years ago
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