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4 years ago

Write an algebraic expression for 12 less than a number times 7

Mathematics

1 answer:

forsale [732]4 years ago

3 0

Answer: 7*N - 12

Step-by-step explanation:

Let's break this so is easier to interpret.

"12 less than a number"

if we call the number as N, this is written as:

N - 12

and the complete sentence is:

"12 less than a number times 7"

So we must multiply our number, N, by 7.

Then the expression is:

7*N - 12

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Point M is the midpoint of JK find JK when JM = 6x - 7 MK = 2x + 3

eimsori [14]

Answer:

JK= 8x-4

Step-by-step explanation:

This is achieved by adding JM And MK because M is the midpoint of JK.

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4 years ago

Figure out the x and y inverse

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Answer:

9 = 22.5

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3 years ago

What type of symmetry is shown in this picture (point, line, or rotational)? Explain your answer and identify the line of symmet

ludmilkaskok [199]

Answer:

symmetry about the y-axis is shown

Step-by-step explanation:

Points on the right of the line of symmetry (x=0, the y-axis) are the same distance from that line as the corresponding points on the left. (That is what makes it a line of symmetry.)

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3 years ago

Read 2 more answers

Find the seventh term in the sequence: 11, 13, 15... A) 12 B) 23 C) 25 D) 27

Zolol [24]

Answer:

11 , 13 , 15, 17 , 19 , 21 , 23 , 25 , 27 ,29 etc........

3 0

4 years ago

What is the answer to 3x - 9 equals 3 (x-5)

viktelen [127]

Answer:

No solution

Step-by-step explanation:

To find the solution to 3x - 9 equals 3(x - 5), we would have to solve for x.

First set the two expressions equal to each other.

3x - 9 = 3(x - 5)

Now we can distribute the 3 on the right side.

3x - 9 = 3x - (3 * 5)

Simplify

3x - 9 = 3x - 15

Now lets try to get x alone on one side of the equality. Subtract 3x from both sides to cancel out of 3x on the right side.

3x - 9 - 3x = 3x - 15 - 3x

-9 = -15

And as you may have realized, -9 does not equal -15.

Why did the x disappear? Why did we end up with -9 = -15 which is clearly a false statement? This is because the the lines y = 3x - 9 and y = 3(x - 15) are parallel. Thus, they will never intersect and the equality 3x - 9 = 3(x - 5) will have no solution.

So there is no solution.

I hope you find my answer to be helpful. Let me know if you have any questions. Happy studying.

4 0

3 years ago