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-3x + 3= -2+x      add 3x, 2 to both sides

5  = 4x                 divide both sides by 4

5/4   = x

-3+8n= -5

Add 3 to both sides to move the -3 from the right side to the left side.

8n= -5 + 3

Add the right side.

8n= -2

Divide both sides by 8 to get the n alone.

n = -2/8

Simplify.

n= -1/4

5 out of 25  = 5/25   = 1/5  = 20/100  = 20%

8 out of 40   = 8/40  = 1/5  = 20/100  = 20%

6 out of 24   = 6/24  = 1/4  = 25/100  = 25%

1 out of 3  = 1/3  =  about  33 + 1/3 %

4 out of 9   = 4/9 =   about  44.4%

0.5(5−7x)=8−(4x+6)    multiply though by 2

[5 - 7x]  = 16 - 2[4x + 6 ]    simplify

5 - 7x  = 16  - 8x - 12

5 - 7x  = 4 - 8x      add 8x to both sides, subtract 5 from both sides

x  = -1

I think you mean  the "tangent inverse"

Hit the "2nd'  key  ....it's the   "atan"   key

Solve for x. 0.5(5−7x)=8−(4x+6)

x= -1

Sorry, accidently put wrong answer there. Tired. Yura's right

1     0     1     1     0      1     =      45

 32         8      4            1

137   =     0001    0011   0111   =         256 +32 + 16 + 4  + 2 + 1   = 311

b21   =     1011    0010   0001   =       2048 + 512 + 256 + 32 +1  = 2849

When subtracting a larger number from a smaller number,   change it to B-A and change the sign of the result

I'll use the complement method to subtract them: Take the inverse of A and add 1  then add them and change the sign

  1110 1100 1001

  1011 0010 0001

1 1001 1110 1010  =  -( 2048 +256 +128 + 64 + 32 + 8 + 2) = -2538

16 ounces in a pound,  so

4.5*16 = 72 ounces 

Then, since you want to split it among 12 students

72/12 = 6

So each student would get 6 ounces.


 

3/8 oz.

Sorry, you're correct. I just noticed the format they used in my textbook is the same that you mentioned.


Thank you!! :)

2(3n+2)<-62

3n+2<-31

3n<-33

n<-11

Two times the sum of three multipled by a number and two is less than negative sixty-two. Which value is a possible solution for the number?

2* [3N + 2] < - 62       divide both sides by 2

3N + 2 < -31         subtract 2 from each side

3N < - 33                 divide both sides by 3

N <  -11

Simplify the expression. Write your answer WITHOUT negative exponents.

(2a2b)2(a3b)−1

what divided by 12 is going to equal 9.2

\(\frac{x}{12}=9.2\\ \mbox{Multiply both sides by 12}\\ \frac{x}{12}*12=9.2*12\\ x=\mbox{and you can finish it :)}\)

I'm confused, Yura_chan.....if   s(t)  =  sqrt(4t)   is the position function.....then....the average velocity  =  

[change in position]  / time traveled 

The  position  at t = 4 = sqrt(4*4)  = 4 cm

And the position at t = 1 = sqrt(4*1)  =  2cm

So ......

It moves 2cm  in 3 seconds    =  2/3  cm  per second....

Ignore the other guy's answer. He's just being rude and disrespectful (wish I could flag it). 

1.48148e+17 is what I got.

110.4

{nl} Oh, I hadn't realized that it was 15 - [1/6]n. Sorry.

4w^2 - 25    =

(2w + 5) (2w - 5)

BTW.....this is a perfect square binomial, not a trinomial....

I thought I'd have to use the formula f(x)-f(c)/x-c 
Is what I've been doing correct?

I think that's a bit different from what you mentioned.  It's question 1.