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Klio2033 [76]
3 years ago
15

A Student writes "the sum of 7 times a number n plus 5"to describe the expression 7(n+5) explain the error

Mathematics
1 answer:
ziro4ka [17]3 years ago
6 0
7(N) + 5  It's 7 times a number first, then add 5
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ohaa [14]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Which set of numbers includes only integers?
Lelu [443]

Answer:

{14,23,654,0,9}

Step-by-step explanation:

The first three contain negative numbers and decimal points therefor the last one {14,23,654,0,9} is correct.

3 0
3 years ago
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Help please !! Thank u
leonid [27]

Answer:

parallel = same slope (-2x)

so it's y=-2x + b

let's find b by plugging in 1 for x and 3 for y (the coordinates)

3 = -2*1 + b

3 = -2 + b

5 = b

there you have it:

y = -2x +5

brainliest would really be appropriated (possible when someone else also leaves an answer)

4 0
3 years ago
Mr. Pham wrote the equation below on the board. 18 - 7x = -20.5 What is the value of x?
slavikrds [6]
Use the arithmetic operations to get the variable x on one side of the equation and everything else on the opposite side.

If something is being is being done to a variable, we undo that operation by using the inverse of that operation.

For example, if 10 is being added to x, we use the inverse of addition or subtraction.

18 - 7x = -20.5

We variable x is being multiplied by 7 and is subtracting 18. We need to undo all those operations.

18 - 7x = -20.5
-7x = -38.5

Now the variable is only being multiplied by -7. Reverse the operation.

-7x = -38.5
x = 5.5

So, x is equal to 5.5.
7 0
3 years ago
Read 2 more answers
If the area of square is 2401 sqaure metre,find the perimeter of the sqaure​
Tcecarenko [31]

Answer

P=196                        

P=4A=4·2401=196                                  

6 0
3 years ago
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