find the value of x
x=

Answer:

7.4 % is percent error

Step-by-step explanation:

https://brainly.com/question/21689164

The percent of error is 7.4%. The correct option is B.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Estimated value: 231

Actual value: 215

To find the percentage:

First, the value,

= 231 - 215

= 16

Now,

let n be the percentage.

So,

16 = n x 215/100

n = 1600/215

n = 7.4%

Therefore, 7.4% is the error.

To learn more about the percentage;

https://brainly.com/question/24159063

#SPJ6

Answer:

1. 3[tex]\frac{3}{8}[/tex] ft.

2. 72.8 cm

3. 28.35 Inches

4. I think its the 11, and the area is 49.14 inches

Area of rectangle = base × height

Area of parallelogram = base × height

1.

[tex]\displaystyle 2.25 \times 1.5=3.375 \ or \ 3\frac{3}{8} \ ft^2[/tex]

2.

[tex]7 \times 5.2 = 36.4 \ cm^2[/tex]

3.

[tex]8.1 \times 3.5=28.35 \ in^2[/tex]

4.

[tex]11 \times 4.2=46.2 \ in^2[/tex]

The measurement that is unnecessary is 11.7 inches because only base and height is required to find the area.

Answer:

1017.8

Step-by-step explanation:

this is the formula 4πr2

hope this helps: )

Answer:

Step-by-step explanation:

Volume of cone = π9²⋅12/3 = 324π cm³

volume of sphere = 4πr³/3 = 324π

r = ∛243

surface area of sphere = 4πr² ≈ 155.8π

Answer:

-10 or 25 (read my explanation)

Step-by-step explanation:

(-5)2

-5*2=-10

(Unless the 2 is supposed to be an exponent)

If it is supposed to be an exponent the answer is 25

(-5)^2

25

[tex]\huge\boxed{Hi\;there!}[/tex]

(-5)2 means negative five times 2.

The answer is -10.

Remember, if we multiply a negative times a positive, we get a negative number.

[tex]\huge\boxed{\rm{Hope\:it\:helps!}}[/tex]

[tex]\huge\bf{Good\:luck!}[/tex]

[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]

Answer: Company B charges $(15.5+0.12x) more for x miles than company A.

Step-by-step explanation:

Let x = Number of miles.

Total charge = Flat charge + (charge per mile) x  (Number of miles)

Given:

For Company A ,

Flat charge= $45

Charge per mile =  11 cents  = 0.11   [ 1 dollar = 100 cents i.e. 1 cent = 0.01 dollar]

Total charge = 45+0.01x

For Company B,

Flat charge= $60.50

Charge per mile =  13 cents  = 0.13

Total charge = 60.50+0.13x

Difference in charge = Charge for company B -  Charge for company A

= 60.50+0.13x-(45+0.01x)

= 15.5+0.12x

Hence,  Company B charges $(15.5+0.12x) more for x miles than company A.

Answer:

A: 4.4    B: 0.875

Step-by-step explanation:

22/5=4.4. We know this because 22/5 simplified is 4 2/5, which converted to a decimal is 4.4.

7/8=0.875. We know this because 7/8 converted to a decimal is 0.875.

Answer:

270 = number who get news from print sources

630 =  number who get news from social media

Step-by-step explanation:

Let 3x = number who get news from print sources

and 7x = number who get news from social media

Then 3x + 7x = 900

10x = 900

x = 90

3x = 3(90) = 270 = number who get news from print sources

7x = 7(90) = 630 =  number who get news from social media

Check:  270/630 = 3/7 and 270 + 630 = 900

Answer:

Step-by-step explanation:

tan47=x/18

x=18tan47

cosCDB=7/x

cosCDB=7/(18tan47)

CDB=arccos(7/(18tan47))

CDB=68.74

Step-by-step explanation:

25.74- 8.58=x/4.29

Answer:

z=70, y=102

Step-by-step explanation:

180-110 = 70

so, z=70

99+89+70 = 258

360-258 = 102

so, y=102

Answer:

3

Step-by-step explanation:

24x (1/8) = 3

hope this helps

110.859

Hi its me again

Answer:

1026

Step-by-step explanation:

as everyone knows that up to 4 the number increases so here it is 4 so it decreases we can't increase it .

hope it helps.

Answer:

a) The rate of how much rain falls each hour.

b) The y-int in this is (0,0) but which means how much inches of rain there wee before it started raining. (doesn't make sense but that's how it works lol)

c) 4.8 inches.

3/5 x 8 = 4.8 inch

Step-by-step explanation:

Step-by-step explanation:

Your answer is

43,37,31,25

Hope that this is helpful. Tap the crown button, Like & Follow me

Answer:

2 envases iguales de 171 litros

Step-by-step explanation:

Para calcular esto, primero necesitamos sumar los dos contenedores y cuantos litros de jugo tienen cada uno.

198 + 144 = 342 litros.

Ahora tenemos que calcular el numero minimo de envases. Si ya sabemos que es un numero par entonces lo podemos dividir en dos envases iguales sin que sobre...

342 / 2 = 171 litros

Finalmente, podemos ver que podemos dividir el jugo en 2 envases iguales de 171 litros

Answer:

(-3,-2,-1,1,2,3,4]

Step-by-step explanation:

All x values. Put the bracket and ( as well.

Answer:

Your answer is One solution

Hope that this is helpful. Tap the crown button, Like & Follow me

Answer:

102 nickels and 56 quarters

Step-by-step explanation:

Since the total amount of coins is 158, then...

q+n=158

Since the total amount of money is $19.10, and a quarter is 25 cents and a nickel is 5 cents, then...

0.25q+0.05n=19.10

Now that we have 2 equations and 2 variables, we can solve for this equation by solving the first equation for q and plugging it into the second equation.

q+n=158,

q=158-n

Plug into the other equation,

0.25(158-n)+0.05n=19.10

and solve for n

39.5-0.25n+0.05n=19.10

39.5-0.2n=19.10

-0.2n=-20.4

n=102

there are 102 nickels.

Now solve for quarters.

q+n=158

q+102=158

q=158-102

q=56

Answer:

The height above ground level of a rider on a roller coaster over the duration of the ride

Step-by-step explanation:

Answer:

The one that says roller coaster in it.

Step-by-step explanation:

The rest are constant rates so they shouldn't be going up and down on a graph. Since the roller coaster height goes up and down and not straight, it would look like what is shown on the graph.

Answer:

> = less than

< = greater than

3. less than or equal to

4. greater than or equal to

Step-by-step explanation:

Answer:

3\7

Step-by-step explanation:

2\3×9\14=3\7

Answer:

[tex]Y=30[/tex]

Step-by-step explanation:

[tex]Y=X+13[/tex]

If X = 17, you have to add that with 13 to get Y.

[tex]17(X)+13=30\\Y=30[/tex]

That is your final answer.