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3241004551 [841]
2 years ago
8

Translate this phrase into an algebraic expression. 57 decreased by twice a number Use the variable n to represent the unknown n

umber.​
Mathematics
1 answer:
harkovskaia [24]2 years ago
5 0

Answer:

Step-by-step explanation:

57-2n

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I need to know what -(6h + 7) + 8 = -19 is
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Step-by-step explanation:

-1(6h + 7) = -6h - 7

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Schach [20]

9514 1404 393

Answer:

  r = 1/9

Step-by-step explanation:

First of all, solve the equation for r:

  y = rx

  y/x = r . . . . . . . divide by x

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Since r is a constant, it will be the same for any corresponding pairs of x and y. It is convenient to choose both x and y as integers, as in the third table entry.

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_____

<em>Additional comment</em>

It is not a bad idea to check to see that this works with other values of x and y. For the first line of the table, we have x = 11:

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Answer:

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