Find the value of the value of x.
09
HH
4x + 20
40
th
O2 = 10
O2 = 15
O r = 80
O r = 50

Answer:

Subtraction Property of Equality

Step-by-step explanation:

Given

[tex]-x + 1 = -4[/tex]

[tex]-x = -5[/tex]

Required

State which property is used

The word that describes the operation is; subtraction property of equality.

This property states that:

if [tex]x = y[/tex] then

[tex]x - a = y - a[/tex]

So, for the given  equation:

[tex]-x + 1 = -4[/tex]

When the subtraction property of equality is applied

[tex]-x + 1 - 1 = -4 - 1[/tex]

[tex]-x = -5[/tex]

So:

(a) Subtraction Property of Equality is correct

Answer:

17/6

Step-by-step explanation:

We know that,

perimeter of rectangle=2(l+b)

or,50=2(2x+x+4)

or,50=2(3x+4)

or,25=6x+8

or,17=6x

•x=17/6

Answer:

The answer is 90 degrees.

Step-by-step explanation:

If you want an explination, I'm more than happy to explain.

Answer:x=90

Step-by-step explanation:

90

Answer:

Complementary

x = 55

Step-by-step explanation:

Complementary angles add up to 90°, while supplementary angles add up to 180°.

In this situation, the two angles add up to 90° (the little box means that an angle is a 90° angle) So, the angles are complementary.

Now, we can write this equation.

x + x - 20 = 90

Simplify.

2x - 20 = 90

2x = 110

x = 55

Just in case, let's check the answer.

Substitute x = 55 into (x + x - 20 = 90)

55 + 55 - 20 = 90

110 - 20 = 90

90 = 90

This is true, so x = 55 is correct.

I hope this helps! Feel free to ask any questions!

Answer: 19.52 seconds

Step-by-step explanation:

9.2 seconds + 10.32 seconds = 19.52 seconds

Answer:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    7/n-(8/7)=0

Step by step solution :

STEP 1:

           8

Simplify   —

           7

The equation at the end of step

1:

 7    8

 — -  —  = 0

 n    7

STEP 2:

           7

Simplify   —

           n

The equation at the end of step

2:

 7    8

 — -  —  = 0

 n    7

STEP 3:

Calculating the Least Common Multiple :

3.1    Find the Least Common Multiple

     The left denominator is :       n

     The right denominator is :       7

       Number of times each prime factor

       appears in the factorization of:

Prime

Factor   Left

Denominator   Right

Denominator   L.C.M = Max

{Left,Right}

7 0 1 1

Product of all

Prime Factors  1 7 7

                 Number of times each Algebraic Factor

           appears in the factorization of:

   Algebraic    

   Factor      Left

Denominator   Right

Denominator   L.C.M = Max

{Left,Right}

n  1 0 1

     Least Common Multiple:

     7n

Calculating Multipliers :

3.2    Calculate multipliers for the two fractions

   Denote the Least Common Multiple by  L.C.M

   Denote the Left Multiplier by  Left_M

   Denote the Right Multiplier by  Right_M

   Denote the Left Denominator by  L_Deno

   Denote the Right Multiplier by  R_Deno

  Left_M = L.C.M / L_Deno = 7

  Right_M = L.C.M / R_Deno = n

Making Equivalent Fractions :

3.3      Rewrite the two fractions into equivalent fractions

Two fractions are called equivalent if they have the same numeric value.

For example :  1/2   and  2/4  are equivalent,  y/(y+1)2   and  (y2+y)/(y+1)3  are equivalent as well.

To calculate equivalent fraction, multiply the numerator of each fraction, by its respective Multiplier.

  L. Mult. • L. Num.      7 • 7

  ——————————————————  =   —————

        L.C.M              7n  

  R. Mult. • R. Num.      8 • n

  ——————————————————  =   —————

        L.C.M              7n  

Adding fractions that have a common denominator :

3.4       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

7 • 7 - (8 • n)     49 - 8n

———————————————  =  ———————

      7n              7n  

The equation at the end of step

3

:

 49 - 8n

 ———————  = 0

   7n  

STEP

4

:

When a fraction equals zero :

4.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now, to get rid of the denominator, Tiger multiplies both sides of the equation by the denominator.

Here's how:

 49-8n

 ————— • 7n = 0 • 7n

  7n  

Now, on the left-hand side, the  7n  cancels out the denominator, while, on the right-hand side, zero times anything is still zero.

The equation now takes the shape :

  49-8n  = 0

Solving a Single Variable Equation:

4.2      Solve  :    -8n+49 = 0

Subtract  49  from both sides of the equation :

                     -8n = -49

Multiply both sides of the equation by (-1) :  8n = 49

Divide both sides of the equation by 8:

                    n = 49/8 = 6.125

One solution was found :

n = 49/8 = 6.125

Step-by-step explanation:

hope this helps...

The solution of equation [tex](7^2)^4=n^8[/tex] is n = 7

"It is a mathematical statement which consists of variables and constants, and some algebraic operations."

"It is a mathematical statement which consists of equal symbol between two mathematical statements."

For given question,

We have been given an equation [tex](7^2)^4=n^8[/tex]

Consider an algebraic expression on the left side of the above equation.

[tex](7^2)^4[/tex]

Using the properties of exponents we can write it as,

[tex](7^2)^4\\=7^{(2\times 4)}\\=7^8[/tex]

So, given equation becomes,

[tex]7^8=n^8[/tex]

Since power is same, base of above exponents is equal.

⇒ n = 7

Therefore, the solution of equation [tex](7^2)^4=n^8[/tex] is n = 7

Learn more about the exponents here:

https://brainly.com/question/12158740

#SPJ2

Answer:

The answer is 5f + 6g +12

Step-by-step explanation:

Answer:

5f + 6g +12

Step-by-step explanation:

Simplify the expression.

Answer:

180

or if your looking for math books then

48

Step-by-step explanation:

36+62=98

98+34=132

180-132=48

Answer:

180

Step-by-step explanation:

Answer:

C and D

Step-by-step explanation:

I'm too braindead to explain this, read comments

Answer:

-2 1/72

Step-by-step explanation:

Start by combining -4/7 and 4/7 to make 0, shortening your equation. Then continue by making the fractions remaining, 8/9 and -9/8, have a common denominator. To do this, we multiply -8/9 by 8, and -9/8 by 9. Then, we have -64/72 and -81/72. Then, we can combine the numerators of the fractions, as they have common denominators, and we get the fraction -145/72. We can then simplify this to -2 1/72.

Hope this helps!

Answer:

hewo

Step-by-step explanation:

i dont know- probably bc they don't want to

Answer:

Pretty sure it's 20.24.

Step-by-step explanation:

Since you know the side adjacent to the reference angle and you want to find the side opposite, you're going to need to use tangent, which is opp/adj.

tan(39) = [tex]\frac{x}{25}[/tex]

Find the tangent of 39...

0.8097 is the approximate value. So...

0.8097 = [tex]\frac{x}{25}[/tex]

Now, switch the sides to make it easier.

[tex]\frac{x}{25}[/tex] = 0.8097

Multiply both sides by 25.

x = 20.24

Answer: = 2

Step-by-step explanation: Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

Answer:

The first two digit number divisible by 6 is 12 and The last two digit divisible by 6 is 96 Let a=12, d=6, an=96

Step-by-step explanation:

Answer:

There are 15 2 digit numbers which are divisible by 6.

9514 1404 393

Answer:

Step-by-step explanation:

The general steps are ...

It is generally convenient to put the variable terms on the side of the equation having the largest (most positive) variable term. You do the rearranging by subtracting the terms you don't want. Any operation is performed on both sides of the equation.

__

1) 3x + 7 = 4x

We observe the largest x-term is on the right, and the only constant term is on the left. We can subtract the x-term 3x to eliminate it from the left side

  3x +7 -3x = 4x -3x

Combining like terms gives ...

  7 = x . . . . . this is the solution

__

2) x +2 +2x = x + 10

We observe x-terms and constants on both sides of the equation. First of all, we will combine like terms.

  3x +2 = x +10

The largest x-term is on the left, so we choose to subtract x (the x-term on the right)

  3x -x +2 = x -x +10

  2x +2 = 10

We don't want the constant on the left, so we subtract 2.

  2x +2 -2 = 10 -2

  2x = 8 . . . . . . . . . . combine like terms

Now, we divide by the coefficient of x.

  2x/2 = 8/2

  x = 4 . . . . . . the solution

__

3) x +3x = x + x + 10

  4x = 2x +10 . . . . . . . combine like terms

  2x = 10 . . . . . . . . . . . subtract 2x

  x = 5 . . . . . . . . . . . . . divide by 2

__

4) 2x +3 + 3x = x + 11

  5x +3 = x +11 . . . . . . . . combine like terms

  4x +3 = 11 . . . . . . . . . . . subtract x

  4x = 8 . . . . . . . . . . . . . . subtract 3

  x = 2 . . . . . . . . . . . . . . .divide by 4

_____

Learn to identify and combine like terms. Use addition or subtraction to eliminate terms you don't want. Use multiplication or division to eliminate coefficients you don't want. Whatever you do to one side of the equation must also be done to the other side of the equation. (In the above, we use "subtract ..." to mean "subtract ... from both sides of the equation," for example.)

Answer:

the answer is 5

Step-by-step explanation:

-0.25/(-0.25)=-1.25/(-0.25)

z=5

Answer:

5

Step-by-step explanation:

Answer:

2.20$

11$

Step-by-step explanation:

18.70/8.5=2.2

2.2= 2.20$

2.2x5=11

11=11$

Answer:

60,000

Step-by-step explanation:

I may be wrong hope not.

To find 1/3 of 180, we need to multiply 180 by 1/3, or divide 180 by 3. For this one, we will try both methods.

180/1 x 1/3 = 180/3 or 60

180 / 3 =60

Since we now know how much was sold, we need to find what is left. We need to subtract 180 by 60.

180-60=120

So 120 bottles are left. Now, since 3/5 of 120 were sold the next day, we need to multiply 120 by 3/5.

120/1 x 3/5 = 360/5 or 72.

Now we know that 72 bottles were sold on Saturday. Subtract 120 by 72 to know how much is left in total.

120-72=48

60 bottles of water were sold on Friday.

72 bottles of water were sold on Saturday.

There were 12 more bottles sold on Saturday than Friday.

---

hope it helps

Answer:

73 could be wrong

Step-by-step explanation:

55x55+48x48=5329

✓5329

73

10.

Because the ratio is how many problems:How much time so it is 2:15

Multiply each side by 5 10:75

So that means 10 problems in 75 minuets.

HOPE THIS HELPED!!!

Answer:

10

Step-by-step explanation:

Set up the following proportion.

2 questions /15 minutes = x questions / 75 minutes.

Notice that both ratios are set up the same way -- questions / time. All proportions are set up the same way.

Mulltiply both sides by 75

2 * 75 / 15 = x

2 * 5 = x

x = 10

She would be able to solve 10 problems in 75 minutes.

Answer:

Luis

Step-by-step explanation:

Answer:

- 1,503,050

Step-by-step explanation:

Given that the sum of arithmetic sequence =

n/2[2a + (n-1)d]

Where;

n = 575

a = -4910

d = a i - a i-1  = 8

Substituting values;

575/2 [2(-4910) + (575 -1) 8]

575/2  [(-9820) + 4592]

=  - 1,503,050

Answer:

Answer is 690 every month

Step-by-step explanation:

The total cost is $23,500

Scholarship:8200$

2nd scholarship:7400$

Grandparents: 1000$

23,500-8,200-7400-1000=6900÷10=690

He will have to save up 690 every month for 10 months

Answer:

G

Step-by-step explanation:

5+8+10+7=30

10/30=1/3

Answer:

G. or H. one of em

Step-by-step explanation: