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3 years ago

-52 times the difference between a number and 14 is equal to the number plus 3

1 answer:

3 0

X=number looked for
we have this equation:
-52(x-14)=x+3
we solve this equation:
-52x+728=x+3
-52x-x=3-728
-53x=-725
x=-725/-53=725/53 ≈13,68

Solution: 725/53

To check:
the difference between 725/53 and 14=725/53 - 14=(725-742)/53=-17/53
-52 times the diference is= -52(-17/53)=884/53
The number plus 3=725/53 + 3=(725+159)/53=884/53

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Answer:

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The error bound is of $101.

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

The error bound is half the difference between these two values.

In this question:

90% confidence that the mean household income in the U.S. falls between $69,720 and $69,922.

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3 years ago

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Answer:

Step-by-step explanation:

6x - 2y = -4

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We see that y = 3x + 2 so we can use that value of Y everytime we see i in the other equation.

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Now usually we'd we simply solve for X.

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This clearly does not work as we cannot get rid of X

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4 years ago

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Step-by-step explanation:

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3 years ago

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Answer:

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