Which describes the error and solve for surface area.

Answer:

x =9

Step-by-step explanation:

Let x = be the number

2x -3 =15

Add 3 to each side

2x-3 +3 =15 +3

2x = 18

Divide each side by 2

2x/2 =18/2

x =9

Answer: [tex]x=-6[/tex]

Step-by-step explanation:

Three (3) less than (-) twice (2) a number (x) is (=) 15

[tex]3-2x=15[/tex]

[tex]-2x=15-3\\-2x=12\\x=\frac{12}{-2}\\ x=-6[/tex]

Answer:

A

Step-by-step explanation:

Answer no clue if u remember me but we was friends like last year over the summer. i found one our old conversations  on here. j wanted to say hi and check in :)

Step-by-step explanation:

Answer:

False. 0.17

Step-by-step explanation:

Answer:

3/4 or 3:4

Step-by-step explanation:

To express this as a ratio, we simply place 15 over 20

mathematically that would be;

15/20

divide numerator and denominator by 5

= 3/4

Answer:

17.5

Step-by-step explanation:

First you need to put those numbers in order from least to greatest

second go from each side and count till you get to the middle 17 and 18

third add 17 + 18 = 35

fourth divid by 2 35/2 = 17.5

Hope this helps

Answer:

Sybil may have confused the units, since 65 centimetres is 6.5 meters The correct length of the desk in meters is 0.65 because a centimetre is 0.01 of a meter.

Step-by-step explanation:

Her desk is actually 65 centimetre long . She made an error and conclude the length of her desk is 6.5 meter long. She made a mistake in her conversion .

1 centimetre = 0.01 meters

65 centimetres = ? meters

cross multiply

65 × 0.01 = 0.65  meters

A centimetre is equal to  0.01 meters. Therefore, using that conversion rate 65 centimetres will evaluate to 0.65 meters.  

The actual length of her desk in meters is 0.65. She made an error when converting her desk length from centimetres to meters.

Answer:

The net change is a decrease of 1,280 feet

Step-by-step explanation:

From the question, we understand that the hiking team has a work rate of 320 feet / hour

Now that are descending between the hours 1pm and 5pm, this means that they descended for a total of 4 hours.

Now the total number of feet they have descended will be the number of hours * work rate = 4 hours * 320 feet/hour = 1,280 feet

Thus, the net change is decrease of 1,280 feet

Answer:

16

Step-by-step explanation:

just use a mean absolute deviation calculator next time

Step-by-step explanation:

4.5 × 10

= 45

this is the answer

Answer: y + 5 = 2 ( x + 1 ) = 2 x − y + 2 = 5

Answer:

 Slope = 4.000/2.000 = 2.000

 x-intercept = 3/2 = 1.50000

 y-intercept = -3/1 = -3.00000

Step-by-step explanation:

I hope this helped!

The answer is D.

For a toss of heads you can have a roll of 1, 2, 3 or 4.

and for a toss of tails you could have a roll of 1, 2, 3, or 4

Answer:

(-2,1)

Step-by-step explanation:

The two equations cross at (-2,1). Hope this helps.

Answer: [tex]17.33ft[/tex]

Step-by-step explanation:

We need to go from area to radius to circumference.

Formula for the area:

[tex]A=\pi r^2[/tex]

Solve for r;

Divide by pi

[tex]r^2=\frac{A}{\pi}[/tex]

Extract the square root.

[tex]r=\sqrt{\frac{A}{\pi} }[/tex]

Plug in the value of the area.

[tex]r=\sqrt{\frac{24ft^2}{3.14} } \\r=2.76ft[/tex]

Now that you've found the radius, use the circumference formula to calculate it.

[tex]C=2\pi r\\C=2(3.14)(2.76ft)\\C=17.33ft[/tex]

Answer:20 apples

Step-by-step explanation:

30-10=20

Answer:

mean  is 16

Step-by-step explanation:

to find the mean of the data set u add up all the numbers and then u see how many number there are in total and u divided the solution of the sum and divided it by the total number of numbers.

17+21+14+17+12+15+16 = 112

then u see how many number there are and there are 7

112/7= 16

Answer:

160

Step-by-step explanation:

add the numbers together then divide by 8

Answer:

17/45

Step-by-step explanation:

Answer:

is your brainly working?

Step-by-step explanation:

The area of a vertical cross-section through the center of the pool is 24 square feet for a cylindrical swimming pool having height of 4 feet and a circumference of  75.36 feet.

Area is the total space occupied by a 2D figure.

Given the following,

Height of the pool, h= 4 feet

Circumference of pool, C= 75.36 feet

C=2πrh

On substituting the values of h=4 and  π=3.14

[tex]75.36=2\times 3.14\times r\times 4\\\\[/tex]

[tex]r=\dfrac{75.36}{2\times 3.14\times 4}\\r=3[/tex]

Thus the given pool is of radius 3 feet.

Vertical cross-sectional area of a cylinder= Area of rectangle

Area of cross-section = Width*Height

Here for a cylindrical pool,

Width of cylindrical pool=2r=2*3

Width of cylindrical pool=6 feet

Height of cylindrical pool= 4 feet

Area of cross section =6*4

Area of cross section= 24 square feet

Thus, the cross-sectional area of a pool is 24 square feet.

Learn more about area, here:

https://brainly.com/question/30106292

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Answer:

B: x = -y+6

Step-by-step explanation:

Since y = x+6:

Bring x and y to their opposite sides:

x = -y+6

I hope this helps and plz mark me brainliest!!

Answer:

The new volume is 7^3 or 343 times the old volume

Step-by-step explanation:

The original sphere has a volume of

V = 4/3 pi r^3

The radius is multiplied by 7

The new volume is

V = 4/3 pi (7r) ^3

V = 4/3 pi (7)^3 r^3

The new volume is 7^3 or 343 times the old volume

Answer:

8 - 3.2m

10- 4m

7- 2.8m

5- 2m

Step-by-step explanation:

Aquí, podemos hacer los componentes en forma de relaciones para conocer la longitud equivalente de cada uno de los componentes a la longitud total de la pared.

Ahora usando los componentes en forma de proporciones, tenemos 8: 7: 10: 5. sumando todos los componentes juntos, tenemos; 8 + 7 + 10 + 5 = 30.

Para 8, tenemos 8/30 * 12 = 3.2 metros

para 7, tenemos 7/30 * 12 = 2.8 metros

Para 10, tenemos 10/30 * 12 = 4 metros

para 5, tenemos 5/30 * 12 = 2 metros

Answer:

300 square units

Step-by-step explanation:

explanation-because i just know

Answer:

300

Step-by-step explanation:

300 is correct

Just got it correct on Edge IYI

Answer:

20

Step-by-step explanation:

hope it right not the best with counting

Answer:

∠GHJ and ∠IHJ

Answer:

[-10, 10]

This is an absolute value problem and numbers within the brackets are always seen as positive. [-10] = 10   and [10] = 10

Step-by-step explanation:

Answer:

5/2

Step-by-step explanation:

5/8 ÷ 1/4

= 5/8 × 4

= 5/2

Answer:

x>0

Step-by-step explanation:

you can also write the expression like

√7x^2

----------

√3x

( I tried making a fraction above if you couldn't tell srry)

Also remember, if you're dividing by something, the denominator cannot be 0. So, a restriction is that x cant be 0. It can't also be negative, besides complex numbers, the root of a negative number is non-existant. So the value of x cannot be below 0. So the answer would be x>0.

X>0 because everything above 0 is positive and this inequality shows that it doesn't include 0 as well.

Ask if u have any more questions! :)

Answer:

Around 11:15 am

Step-by-step explanation:

Let h represents the number of hours the plumber works

Since the plumber charges $65 fee plus $75 per hour, the bill can be calculated by:

→ bill = 65 + 75h

Since the bill is $195.25

→ 195.25 = 65 + 75h

→ 75h = 130.25

→ h = 1.74

1.74 implies that the plumber worked almost 1 hour and 45 minutes. Since the plumber started at 9:30, the repair was completed around 11:15 am.

Answer:

The answer might be d.

Answer:

the answer and explanation is in the picture

please like and Mark as brainliest

hope this helps

The beef price is $10.65

Onions price is $2.49

Potatoes are $3.29

Tomatoes are $8.45

Asparagus is $4.99

3.25 pounds of beef is          3.25 * 10.65 =  34.61

0.65 pounds of onions is      0.65 * 2.49   =  1.62

0.2 pounds of potatoes is     0.2 * 3.29     =  0.66

0.15 pounds of tomatoes is   0.15 * 8.45   =  1.27

0.33 pounds of asparagus is 0.33 * 4.99  =  1.65

Adding these up we get 34.61 + 1.62 + 0.66 + 1.27 + 1.65

This is equal to 39.81

A recipe is mixture of ingredients.

Divya will pay $39.81 for all the ingredients in the recipe.

The beef price is $10.65 per pound

So, price of 3.25 pounds of beef is ,  [tex]3.25 * 10.65 = 34.61[/tex]

Onions price is $2.49 per pound

So, price of 0.65 pounds of onions is,  [tex]0.65 * 2.49 = 1.62[/tex]

Potatoes are $3.29 per pound

So, price of 0.2 pounds of potatoes is ,  [tex]0.2 * 3.29 = 0.66[/tex]

Tomatoes price are $8.45 per pound.

So, price of 0.15 pounds of tomatoes is  , [tex]0.15 * 8.45 = 1.27[/tex]

Asparagus price is $4.99 per pound.

So, price 0.33 pounds of asparagus is , [tex]0.33 * 4.99 = 1.65[/tex]

Hence, total amount paid by Divya is,

             [tex]=34.61 + 1.62 + 0.66 + 1.27 + 1.65=39.81[/tex]

Thus, Divya will pay $39.81 for all the ingredients in the recipe.

Learn more:

https://brainly.com/question/18994792