MATHEMATICS MIDDLE SCHOOL

Which expression is equivalent to 10n + 81 - 4n - 9?6n +90
14n +72
6n +72
14n +90

Answers

Answer 1
Answer:

6n + 72 is the expression is equivalent to 10n + 81 - 4n - 9

What is Expression?

An expression is combination of variables, numbers and operators.

The given expression is 10n + 81 - 4n - 9

Ten times of n plus Eighty one minus four times of n minus nine

In the given equation n is the variable, plus and minus are operators

10n + 81 - 4n - 9

We need to add the like terms.

Like terms means terms of variables with same power.

10n + 81 - 4n - 9

6n+72

Hence, 6n + 72 is the expression is equivalent to 10n + 81 - 4n - 9

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Answer 2
Answer:

Answer:

6n + 72

Step-by-step explanation:

10n + 81 - 4n - 9

6n + 72

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Describe a way that someone could estimate the length of a book

Answers

Answer with explanation:

→The best estimation of a book will be in terms of CM(Centimeter) or Feet.

→We Should use "Centimeter Scale or Measuring tape" for this purpose.

→Otherwise, take a thread ,Put one end of thread on one end of book, that is along the longer side, and keep elongating the thread until you reach the other end.Now, with the help of Different kind of Measuring tape,you can find the length of that thread Accurately.And that will be the length of the book.
Somebody can estimate the length of a book by using a ruler and rounding it to the nearest whole number.

Is the data point, P, an outlier, an influential point, both, or neither?

Answers

I'd say an outlier. P is separated noticably from the other points and would not considerably affect the slope of the line

Answer:

An outlier

Step-by-step explanation:

The point P is quite  separate from the rest of the data.

A kennel is moving 160 dogs to a new facility each dog has its own crate the manager renta 17 trucks each truck holds 9 dogs write a division problem that can be used to find the number of trucks needed

Answers

160 divided by 9 = the amount of trucks needed. (17.7 therefore you would need to rent 18 trucks) 

What is 2.63 to the nearest tenth

Answers

2.6 or 2.60 I believe.
The 6 is the tenth place. And the number to the right is 3. Which is lower than 5. We round down.

2.63 becomes 2.6

Frank increased his score on his English assignment from 12 points to 18 points

Answers

Frank increased his score by 6 points. 
That was a 50% improvement.
Hey There!

Frank increased the score on his english assignment by 6 points, to find the answer subtract 18-12=6.

Thus, he changed his score by 6 points

Thank You!

What is the equation of the line that passes through the point (
−
4
,
−
7
)
(−4,−7) and has a slope of
3
2
2
3
​
?

Answers

Answer:

3x-2y=2

Step-by-step explanation:

The equation of line having slope (3)/(2) and passing through (-4,-7).

The\ equation\ of\ line\ is\ given\ by\ y=mx+c\ where\ m\ is\ the\ slope\ of\ line.\n\nHere\ m=(3)/(2)\n\nEquation\ y=(3)/(2)x+c\n\nLine\ passes\ through\ (-4,-7),\ it\ will\ satisfy\ the\ equation\ of\ line.\n\n-7=(3)/(2)* (-4)+c\n\n-7=-6+c\n\nc=-7+6\n\nc=-1\n\ny=(3)/(2)x-1\n\n2y=3x-2\n\n3x-2y=2
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Divide 2 1/2 by 1 5/8=
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35/8 as a mixed number