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EastWind [94]
3 years ago
12

when Sally picks any number between 1 and 20, doubles it, adds 6, divides by 2 and subtracts 3, she always gets the number she s

tarted with. why?
Mathematics
2 answers:
Reil [10]3 years ago
7 0
I think it might be because 2 and 3 are factors of 6. 
Ira Lisetskai [31]3 years ago
3 0
Lets say number is x

doubles it (2x)
adds 6 (2x+6)
divide it by 2 (2x+6=2(x+3) so 2(x+3) divided by 2=x+3)
subtract 3 (x+3-3=x)

becasue math is fun, brah
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Can someone pleasee help it’s quiz due rn
Free_Kalibri [48]

Answer: i am prety sure that it is 8 because when you see that there is a plus sign a minus sign  and an equeal thats pretty much all you gotta do.

Step-by-step explanation:

6 0
3 years ago
What is the answer to this problom.
topjm [15]
The answer would be either 694.7 or 694 7/10. Hope that helped!
4 0
3 years ago
<ABD has a measure of 36 degrees. a)find the compliment of the angle b)find the supplement of that angle
victus00 [196]
A) The complement of an angle is the other angle that can be added to the original to add up to 90 degrees. The complement of <ABD would be 90-36=54

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6 0
4 years ago
Please answer the question that is in the photo attached below
rewona [7]

Answer:

\huge\boxed{b=\sqrt{7}}

Step-by-step explanation:

In order to solve for this equation we have to note a couple of things.

There is a diagonal square inside a larger square. The space formed by the smaller square not being in the larger square is a right triangle.

The side length of the smaller square (4) is also the hypotenuse of this triangle.

Since we know that the other side length of the triangle is 3, we can use the Pythagorean Theorem to find the value of b.

The Pythagorean Theorem states that a^2 + b^2 = c^2, where a and b are the legs and c is the hypotenuse.

We can substitute 3 in as a and 4 in as c and find b.

3^2 + b^2 = 4^2

9+b^2=16

b^2=7

b = \sqrt{7}

So b is \sqrt{7} units long.

Hope this helped!

4 0
3 years ago
Read 2 more answers
PLEASE HELP I NEED HELP, WILL MARK BRAINLIEST TO WHOEVER ANSWERS
Kobotan [32]
The corresponding ordered pairs are (0,4) (1,3) (2,2) and ( 4,0)
On the graph you go right zero and up 4. Then right one and up 3.
Right two and up two.
And right four and up zero
7 0
4 years ago
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