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3 years ago

If 2x + 20 - 2 is 60 what is x?

Mathematics

1 answer:

AfilCa [17]3 years ago

7 0

X = 21

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Use the distributive property to find the product

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Answer:

1st one: -24a-6b-36c

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Step-by-step explanation:

1st one: Multiply '-6' w/ '4a', 'b', and '6c'

2nd one: Multiply '2m' w/ '7n' and '-6'

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Answer:

144 cubic inches

Step-by-step explanation:

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One of the tables shows a proportional relationship. Graph the line representing the proportional relationship from this table i

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Answer:

Table C

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

Find the value of the constant of proportionality in each table

Table A

For $x=-2, y=-4$ ------> $k=-4/-2=2$

For $x=-1, y=-3$ ------> $k=-3/-1=3$

This table has different values of k

therefore

the table A does not represent a proportional relationship

Table B

For $x=-2, y=-4$ ------> $k=-4/-2=2$

For $x=-1, y=-2$ ------> $k=-2/-1=2$

For $x=1, y=3$ ------> $k=3/1=3$

This table has different values of k

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the table B does not represent a proportional relationship

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For $x=-2, y=-4$ ------> $k=-4/-2=2$

For $x=-1, y=-2$ ------> $k=-2/-1=2$

For $x=1, y=2$ ------> $k=2/1=2$

For $x=2, y=4$ ------> $k=4/2=2$

This table has the same value of k

therefore

the table C represent a proportional relationship

Table D

For $x=-2, y=-4$ ------> $k=-4/-2=2$

For $x=-1, y=-2$ ------> $k=-2/-1=2$

For $x=1, y=2$ ------> $k=2/1=2$

For $x=2, y=6$ ------> $k=6/2=3$

This table has different values of k

therefore

the table D does not represent a proportional relationship

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Answer:

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The company is building a scale model of the theater's main show tank for an investor's presentation. Each dimension will be mad

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Answer:

This means the mock-up tank has a volume 216 times smaller than the initial tank.

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This means the mock-up tank has a volume 216 times smaller than the initial tank.

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