12. Write an equation to solve for the value of x Show your work

Answer: -280000

Step-by-step explanation: Remove parentheses: (a)=a   =12x10 4  - 4x10 5

12x10 4 = 120000

4x10 5=400000

=120000-400000

then subtract the numbers:120000-400000= -280000

Answer:

9.71 in decimal form

Step-by-step explanation:

Answer:

Table of charges:

KWh                                                        0       5           10          15           20    

Basic charge (cents)                          11.60    11.60     11.60      11.60       11.60

Charge for first 10 kWh (4.59cents)    0     22.95   45.90    45.90     45.90

Additional usage above 10 kWh          0       0           0         48.55      97.10

(9.71 cents)

Total (cents)                                     11.60   34.55   57.50   106.05    154.60

cost (dollar)                                       0.12     0.35      0.58   1.06         1.55

KWh                                                           25           30          35           40

Basic charge (cents)                               11.60        11.60        11.60        11.60

Charge for first 10 kWh (4.59cents)    45.90      45.90       45.90      45.90

Additional usage above 10 kWh         145.65    194.20    242.75     291.30

(9.71 cents)

Total (cents)                                        203.15    251.70     300.25    348.80                                  

cost (dollar)                                         2.03        2.52          3.00       3.49

Step-by-step explanation:

a) Data:

Basic charge = 11.6 cents (0.116)

Charge for the first 10 kWh = 4.59 cents (0.0459)

Charge for additional usage above 10 kWh = 9.71 cents (0.0971)

b) Each kWh consumed or not attracts the basic charge of 11.6 cents.  The first 10 kWh consumed is billed at 4.59 cents, while the additional kWh consumed is charged at 9.71 cents.  The charge per consumption is first totaled in cents before being converted to dollars by dividing by 100.

Answer: Yes

Step-by-step explanation: bc 6(-3)+5=5(-3)+8+2(-3)

Becomes -18+5=-15+8+-6 which equals -13 on both sides meaning -3 is a solution

6x+5=5x+8+2x

6x+5=(5x+2x)+(8)(Combine Like Terms)

6x+5=7x+8

6x+5=7x+8

Step 2: Subtract 7x from both sides.

6x+5−7x=7x+8−7x

−x+5=8

Step 3: Subtract 5 from both sides.

−x+5−5=8−5

−x=3

Step 4: Divide both sides by -1.

−x

−1

=

3

−1

x=−3

Answer:

x=−3

Answer:

19

Step-by-step explanation:

1/2*(5+x)*4=48

Answer: 86

Step-by-step explanation:

Answer:

86

Step-by-step explanation:

I did this before I think it was 86 not sure

Step-by-step explanation:

Kris bought a 6 pack water for =4.79$

So,

1 unit of water bottle =[tex]\tt{\dfrac{4.79}{6}=0.798333....=0.80\$ }[/tex] ⠀

Answer:

radius r = 3.414 in

height h = 6.8275 in

Step-by-step explanation:

From the information given:

The volume V of a closed cylindrical container with its surface area can be expressed as follows:

[tex]V = \pi r^2 h[/tex]

[tex]S = 2 \pi rh + 2 \pi r^2[/tex]

Given that Volume V = 250 in²

Then;

[tex]\pi r^2h = 250 \\ \\ h = \dfrac{250}{\pi r^2}[/tex]

We also know that the cylinder contains top and bottom circle and the area is equal to πr²,

Hence, if we incorporate these areas in the total area of the cylinder.

Then;

[tex]S = 2\pi r h + 2 \pi r ^2[/tex]

[tex]S = 2\pi r (\dfrac{250}{\pi r^2}) + 2 \pi r ^2[/tex]

[tex]S = \dfrac{500}{r} + 2 \pi r ^2[/tex]

To find the minimum by determining the radius at which the surface by using the first-order derivative.

[tex]S' = 0[/tex]

[tex]- \dfrac{500}{r^2} + 4 \pi r = 0[/tex]

[tex]r^3 = \dfrac{500 }{4 \pi}[/tex]

[tex]r^3 = 39.789[/tex]

[tex]r =\sqrt[3]{39.789}[/tex]

r = 3.414 in

Using the second-order derivative of S to determine the area is maximum or minimum at the radius, we have:

[tex]S'' = - \dfrac{500(-2)}{r^3}+ 4 \pi[/tex]

[tex]S'' = \dfrac{1000}{r^3}+ 4 \pi[/tex]

Thus, the minimum surface area will be used because the second-derivative shows that the area function is higher than zero.

Thus, from [tex]h = \dfrac{250}{\pi r^2}[/tex]

[tex]h = \dfrac{250}{\pi (3.414) ^2}[/tex]

h = 6.8275 in

Answer:

50 miles(D)

Step-by-step explanation:

20 x 2.5

Answer:

where are the equation I don't see them

Answer:

34

Step-by-step explanation:

12+12=24

24+10=34

Answer:

If he is 12 his mom would be 22.

Step-by-step explanation:

12+10=22

       </3 PureBeauty

Step-by-step explanation:

Let x be the smallest even integer.

Then (x + 2) and (x + 4) are the other even integers.

We have x + (x + 2) + (x + 4) = 138.

=> 3x + 6 = 138

=> 3x = 132

=> x = 44.

Hence the smallest integer is 44.

Answer: 5.74 Feet Hope this helps <3

Step-by-step explanation:

Answer:

B!

Step-by-step explanation:

The answer is B. id.k how to explain tho.

Answer:34.5

Step-by-step explanation:

86-51.5= 34.5

Answer:

A, 1:2 ratio

Explanation:

Since 1 is half of 2, and the problem states that RSTUV is half of JKLMN, A is the correct ratio.

Answer:

c

Step-by-step explanation:

Answer:

kjgfdhsxfcgmnhmj,kouiyf

Step-by-step explanation:ugytfguilhyuyrtdyrjcgvh

Answer:

340 oz

Step-by-step explanation:

20 lb = 320 ounces

320 oz + 20 oz = 340 oz

Giving thanks, brainliest, or rating would be appreciated!

Answer: $7,605

Step-by-step explanation:

At the end of 1 years, the amount in the account will be:

= Principal * (1 + rate)^ no. of periods

= 6,500 * (1 + 17%)

= $7,605

Answer:

you spam answered my question

Step-by-step explanation:

consider this revenge

Answer:

1/36

Step-by-step explanation:

(6,6) is the only possible outcome of getting a total of 12

Answer:

Step-by-step explanation:

so, i might be wrong but i hope this helps.

The slope will be the same for a straight line no matter which two points you pick as you know. All you need to do is to calculate the difference in the y coordinates of the 2 points and divide that by the difference of the x coordinates of the points(rise over run). That will give you the slope.

Answer:

1/3

Step-by-step explanation:

17/15-4/5

17/15-4*3/5*3

17/15-12/15

17-12/15

5/15

1/3

The equivalent value of the fraction is A = 1/3

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the first fraction be p

Let the second fraction be q

Now , A = p - q

when the value of p = 17/15

And , when the value of q = 4/5

On simplifying the equation , we get

A = 17/15 - 4/5

So , the left hand side of the equation is equated to the right hand side by the value of ( 17/15 - 4/5 )

A = ( 17/15 - 4/5 )

Taking the LCM of the denominators of the fraction , we get

A = ( 17 - 12 ) / 15

On simplifying , we get

A = 5/15

A = 1/3

Therefore , the value of A = 1/3

Hence , the fraction is A = 1/3

To learn more about fractions click :

https://brainly.com/question/29766013

#SPJ6

Answer:

y = 1/2x + 1

Step-by-step explanation:

In order to evaluate a slope that is perpendicular to the given equation, you need to find the opposite reciprocal of the original slope. This means you take the original slope, flip the numerator and the denominator, and change the sign in front.

-2 ⇒ 1/2

Next, we need to substitute the information given into the point-slope formula.

The point-slope formula is:

y - y₁ = m(x - x₁)

y - 1 = 1/2(x - 0)

y - 1 = 1/2x

y = 1/2x + 1

Therefore, the line perpendicular to y = -2x + 2 is y = 1/2x + 1.

9514 1404 393

Answer:

  168 cubic inches

Step-by-step explanation:

The formula for the volume of a pyramid is ...

  V = (1/3)Bh

where B is the area of the base, and h is the height.

The base is a rectangle, whose are is given by the formula ...

  A = LW

  A = (8 in)(7 in) = 56 in²

Then the pyramid volume is ...

  V = (1/3)(56 in²)(9 in) = 168 in³

The volume of the pyramid is 168 cubic inches.

Answer:

Step-by-step explanation:

Convert these mixed fractions to improper fractions.

3 3/5 = 18/5

-8 1/3 = -25/3

Now, it is easier to multiply them. Multiply the numerators and the denominators.

18  x   25   =   450

5          3           15

Simplify the final answer by dividing 450 ÷ 15, which is 30.

Answer: F

Step-by-step explanation: 5+6+7x8=67