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2u+10=22

first, get u by itself

2u+10=22

     -10  -10

2u=12

then divide both sides by 2

2/2u=12/2

u=6

remember, your goal is to get the letter by itself through moving variables and dividing.

hope this helps! :)

I'll do 1 and 7, but i'm not doing your hw

6= 1-2n +5

6= 6-2n

0=2n

no solution

I'm going to guess you meant 1/2 (one half)

6= 1/2n + 5

1= 1/2n

2(1) = 2(1/2n)

2= 1n

n=2

5n+34 = -2 (1-7n)

5n+34= -2+14n

34=-2+19n

32=19n

n=1.6842

if you meant 1/7

5n+34 = -2 (1/7n)

5n+34= -2/7

5n=33.7143

n=6.7428571

please do your work, or you will fail the quiz/test bc you dont know how to do it. If you actually don't know how to do it, email your teacher/talk to your teacher/ get help/ post here asking for instructions on how to do it. this is basic algebra and it's only going to get harder from here (I would know, i'm in pre-ap pre- calculus) Good Luck! :)

t + t - 3 = 4

combine like terms

2t - 3 = 4

Get t alone

2t - 3 = 4

    +3   +3

2t = 7

divide both sides by 2

2t/2 = 7/2

your answer is:

t= 7/2 (3.5)

-7  -6  -5  -4  -3  -2  -1   0   1   2   3   4   5  6  7

            1   2   3   4    5   6   7   8   9  10 11 12 13

13 degrees difference

width = x

length = 5+x

Perimeter = 9x (9 times x)

Draw a rectangle. Mark the widths with x and the lengths with x+5. Now, we know that in order to find perimeter we add all sides. This would be x + x + (5+x) + (5+x) or 2(x) + 2(5+x). We are given the perimeter 9x

To set up this problem, put 2(x) + 2(5+x) equal to 9x

This is 2(x) + 2(5+x) = 9x

To solve, distribute first.

2(x) = 2x

2(5+x) = 10 + 2x

Now you have 2x + 10 + 2x = 9x

Combine like terms

4x + 10 = 9x

And get all the x's on one side

4x + 10 = 9x

-4x          -4x

Now you have 10 = 5x

Finally, divide by 5 on both sides.

10/5 = 5x/5

Your answer is 2 = x

To check your answer, go back and fill in every x with two on your rectangle.

2 + 2 + 7 + 7= 18

2 times 9 = 18

Hope this helps!! Sincerly, a pre-calculus student :)

Perimeter=2[L + W]

The width=W

Length =W + 5

9W =2 [W+5+W]

9W =2W+10+2W

9W - 4W =10

5W =10

W=10 / 5

W = 2 that is the width

2 + 5=7 that is the length, so that:

9 x 2= 2 [2+7]

18 = 18

I don't give a f**k.  I thought that this was a forum for real questions.

\(\frac{3}{5}*s=6\)

multiply both sides by 5

3*s=30

divide both sides by 3

s=30

it is in it's symplest form

Just enter it exactly as you wrote it.

(5 + p)(p - 2)

  =  5(p - 2) + p(p - 2)

  =  5(p) - 5(2) + p(p) - p(2)

  =    5p    -   10    +  p²      -  2p

  =        p² + 3p - 10 

To find the points of intersection of  y  =  x³ - x² + 2  and  y = x² + 15x + 2  by substitution:

Set the equations equal to each other:  x³ - x² + 2  =  x² + 15x + 2

Subtract  x² + 15x + 2  from both sides:  x³ - x² + 2 - (x² + 15x + 2)  =  0

Simplify:                                                       x³ - x² + 2 - x² - 15x - 2  =  0

                                                                                    x³ - 2x² - 15x  =  0

Factor:                                                                         x(x - 5)(x + 3)  =  0

The solutions are:                                                x = 0     and     x = 5     and     x = -3

Placing these values for x back into  y = x² + 15x + 2  gives these corresponding values for y:

           x = 0    --->   y  =  (0)² + 15(0) + 2      --->   y = 2         --->     (0, 2)

           x = 5    --->   y  =  (5)² + 15(5) + 2      --->   y = 102     --->     (5, 102)

           x = -3   --->   y  =  (-3)² + 15(-3) + 2   --->   y = -34      --->     (-3, -34)

So, (a) is correct.

If the problem is to find the points of intersection of the parabola  -7x + 2y²  =  -10  and the line  -5x - 2y  =  -22, 

then none of the choices is correct.

The points of intersection occur at  (6, -4)  and  (3.36, 2.6).

im not sure???

It is Pi times r² r=radius

6/2(2+1)

6/2 * 3 =

3 * 3 =9

Simplify the following:
1/(6+1/s^2)

Put each term in 6+1/s^2 over the common denominator s^2: 6+1/s^2 = (6 s^2)/s^2+1/s^2:
1/(6 s^2)/s^2+1/s^2

(6 s^2)/s^2+1/s^2 = (6 s^2+1)/s^2:
1/(6 s^2+1)/s^2

Multiply the numerator of 1/((6 s^2+1)/s^2) by the reciprocal of the denominator. 1/((6 s^2+1)/s^2) = (1 s^2)/(6 s^2+1):
Answer: |s^2/(6s^2 + 1)

Whats x/4–15=27 simplified

x/4–15=27

x/4 =27 + 15

x/4 =42 multiply both sides by 4

x =42 x 4

x =168

Area of a circle =Pi x r^2, where r=Radius.

I think its lenghth * with times hight or check the circumfrence

LCM [15, 70] =210

15 = 3×5 (2 distinct prime factors)

70 = 2×5×7 (3 distinct prime factors)

LCM=2 x 3 x 5 x 7 =210

475=5 x 5 x 19

1,000=2 x 2 x 2 x 5 x 5 x 5

So, 5 will divide both numbers. So will 5 x 5 =25

You have to choose a number that when multiplied by itself will equal the same number when added to itself. There is only one number that will do that: 2. So 2 x 2=4 and 2 + 2=4. Because, the left hand side you would multiply: 2 * x, while the right hand side you would add the exponents: 2 + x. So, 2 is the only answer. There are "complex" answers, but that is probably beyond your understanding.

In this question it's given that ,Density of wood=5.5 g/cm3 , Mass of wood=3.3 g,VOLUME=?

since DENSITY=MASS÷VOLUME by using algebra VOLUME=MASS÷DENSITY.So if we put the values VOLUME=MASS÷DENSITY =3.3 g÷5.5 g/cm3 =0.6 cm3