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UkoKoshka [18]
2 years ago
10

A number decreased by half of the number is four find the number Help please!

Mathematics
2 answers:
Tomtit [17]2 years ago
6 0

Answer:

0

Step-by-step explanation:

Write equation:

x=the unknown number

x-x/2=4x

Next: Solve equation

Isolate the variable on one side. The answer is:

x=0 The number is 0.

BARSIC [14]2 years ago
5 0

Answer:

8

Step-by-step explanation:

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What is the measure of m?<br> 5<br> 15<br> E<br> n<br> m = [?]
AlekseyPX
<h3>Answer:  10</h3>

====================================================

Explanation:

The two smaller triangles are proportional, which lets us set up this equation

5/n = n/15

Cross multiplying leads to

5*15 = n*n

n^2 = 75

----------

Apply the pythagorean theorem on the smaller triangle on top, or on the right.

a^2+b^2 = c^2

5^2+n^2 = m^2

25+75 = m^2

100 = m^2

m^2 = 100

m = sqrt(100)

m = 10

7 0
2 years ago
Answers for the 2 boxes please :)​
monitta

Answer:

x=1

y=2

Step-by-step explanation:

Multiply the second equation by 2

and then solve!

4 0
3 years ago
Read 2 more answers
Can someone help me out with this ??
nalin [4]

Answer:

1. b > -2

2. x <= 3

Step-by-step explanation:

Question 1:

-2(b + 5) < -6

Divide both sides by -2. Remember to change the inequality sign.

b + 5 > 3

Subtract 5 from both sides.

b > -2

Question 2:

-(x - 10) >= 7

Divide both sides by -1. Remember to change the inequality sign.

x - 10 <= -7

Add 10 to both sides.

x <= 3

6 0
3 years ago
What is the slope of the line represented by the equation y = –x + ? – –
Svetlanka [38]

For this case we have by definition, that the equation of a line in the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut point with the "y" axis

We have, according to the data provided, that the line is of the form:

y = -x + b

That means that the slope is -1.

ANswer:

m = -1

8 0
3 years ago
Read 2 more answers
PLEASE I AM IN DESPERATE NEED OF HELP
SSSSS [86.1K]

Answer:

I think the 3rd one

Step-by-step explanation:

Hope its right

3 0
2 years ago
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