Elio makes candles that are 14 cm tall. Each candle burns 8 hours before going out. He is wondering how many hours a 21 cm tall candle can burn for. He assumes that the relationship between the height of a candle and number of hours it burns is proportional. How long can a 21 cm tall candle burn for?

Answers

Answer 1

Answer:

12 hours

Step-by-step explanation:

Create a proportion where x is how long the 21 cm candle can burn for:

[tex]\frac{14}{8}[/tex] = [tex]\frac{21}{x}[/tex]

Cross multiply and solve for x:

14x = 168

x = 12

So, the 21 cm tall candle can burn for 12 hours


Related Questions

Given the isosceles trapezoid find the measure of

Answers

Answer:

51

Step-by-step explanation:

In an isosceles trapezoid, the two top angles are congruent and the two bottom angles are congruent

∠D and ∠G are angles that are both on top

Hence ∠D ≅ ∠G

Which means that because ∠D = 51°. ∠G also = 51°

LEAN CADA CONDICIÓN Y COLOQUEN UNA X A LOS NÚMEROS QUE LA CUMPLEN:



UN NÚMERO ES DIVISIBLE POR 3 CUANDO LA SUMA DE SUS CIFRAS ES MÚLTIPLO DE 3.


352 405 625 813 1.011 2.546 5.104





UN NÚMERO ES DIVISIBLE POR 4 CUANDO SUS DOS ÚLTIMAS CIFRAS SON CEROS O MÚLTIPLOS DE 4.


170 512 700 914 1.302 3.164 7.480





UN NÚMERO ES DIVISIBLE POR 6 CUANDO ES DIVISIBLE POR 2 Y POR 3.


213 460 522 720 2.310 4.503 5.316 AYUDA PLS

Answers

Answer:

I speak english srry

Step-by-step explanation:

Solve.
8/21=3x/7
What does X equal?

Answers

Answer:

x= 8/9

Step-by-step explanation:

You must divide 8/21 & 3/7 As a fraction.

3x (20 - 2), when x = 7

Answers

Answer: 378

Step-by-step explanation:

You would get this answer because if x = 7 then you multiply and get 21 because 3 x 7 = 21 then you do what’s in the parentheses and get 18 then multiply 21 x 18 then you get 378

how to measure latitudes​

Answers

Answer:

Lines of latitude run in horizontal parallels and represent distance north or south from the equator, measured in an angle from the centre of the Earth. The equator represents 0° and each pole represents 90°

Step-by-step explanation:

Answer: Hope This Helps!

Step-by-step explanation:

Use the sight line on the top of the aiming beam to align the beam with the North Star. Use the protractor to measure the angle between the beam and the horizon (which is 90º to the plumb line). This angle is your latitude.

no links please :) will mark brainliest if right

Andrei wants to fill a glass tank with marbles, and then fill the remaining space with water. W represents the volume of water Andrei uses (in liters) if he uses n marbles.

W = 32 – 0.05n

What is the glass tank's volume? how many liters?

Answers

Answer:

640

Step-by-step explanation:

=32-0.05W

We move all terms to the left:

-(32-0.05W)=0

We add all the numbers together, and all the variables

-(-0.05W+32)=0

We get rid of parentheses

0.05W-32=0

We move all terms containing W to the left, all other terms to the right

0.05W=32

W=32/0.05

W=640

What are checks and how are they used?

Answers

Answer:

Checks are slips of paper that are used to transfer money from your banking acccount to anothers. You can ask for a checkbook at you local bank, and fill out the required information to be eligible.

You have to fill out your name, which person its going to, the memo (why you are filling out the check), and finally the amout the other person is going to recieve. Once you recieve a check you must go to the bank to either cash out the check (get the amount of cash that was writen on the check), or put the aout of money in your bank ccount.

Sorry if im wrong!

Have a good day! <3

Step-by-step explanation:

Karen borrowed a sum of money for some big screen TVs and a waterfall for her restaurant. If she borrowed $10,200 and received a 3.85 % interest rate compounded continuously, how much did Karen pay in interest over a 7 year period? Round your answer to the nearest whole number​

Answers

Answer:

3155

Step-by-step explanation:

Continously compounding interest formula:

PV*e^(rt)

10200*e^(.0385*7)=13354.95825

To find the amount of interest paid subtract the original amount

13354.95825-10200=3154.958249

which rounds to

3155

PLEASE HELP THIS IS IMPORTANT I will give brainliest

Answers

Answer:

x= -5

Step-by-step explanation:

MARK AS BRAINLEST!!

Answer:

the inequality symbol should be < after dividing by -3, so reversing the sign( if reverse isnt an option ill ask what the options are in the comments)

Step-by-step explanation:

Whenever and inequality is divided by a negative number the inequality sign has to switch.

which of the following represents factorization of the binomial below?
x^2-81

Answers

Answer:

IT'S (x+9)(x-9)

Step-by-step explanation:

A train is moving at an average speed of 180 m/s. how long will it take to reach the station. Both stations are 80 km apart?

Answers

1 km = 1000 meters.

Find total meters: 80 km x 1000 meters per km = 80,000 meters.

Divide total meters by the given speed:

80,000 meters / 180 m/s = 444.44 seconds.

1 minute = 60 seconds

444.44. Seconds / 60 seconds per minute = 7.41 minutes = 7 minutes 24.42 seconds

Total time = 7 minutes 24.42 seconds

Round as needed.

Please help me with this question. The answer is $745,000 but I need working out.

Answers

Answer:

745,000

Step-by-step explanation:

200,000x.03= 6000

150,000x.025=3,750

Commission.    2,350

total.                12,100

total fees.            20,000

less above.           12,100

=.remaining fees    7,900

divide by .02(2% commission)

=remaining sales price 395,000

tier 1 200000

tier 2 150000

tier 3 395,000 (calculated above)

=.       745,000 sales price

When given a system 2 or more equations, the number of solutions to the system is
determined by...

Answers

More important maybe

find the solution of this system of equations.
separate the-x and y-values with a comma.

x=12+y
18x-12y=18

Answers

Answer: [tex]x=-21, y=-33[/tex]

[tex]x-y=12,\\18x-12y=18 ( divide by 6)\\3x-2y=3, 2nd Eq.\\multiply- first -equation by 2\\\\2x-2y=24, 1st Eq.\\subtract-the- second -equation- from -first\\2x-3x=24-3,\\-x=21 or x=-21,\\\\substitute-the-value-of -x\\-21-y=12,\\y=-21-12= -33\\[/tex]

Step-by-step explanation:

The lengths of the sides of a triangle are 6, 8, and 10.

Classify the triangle as acute, right, or obtuse.

Choose the correct type of triangle below.

right
acute
obtuse

Answers

Answer:Right

Step-by-step explanation:for sure

EASY BRAINLIEST!!!
-90 points-

Answers

363.39in² is a required area.

Answer:

we have

a=10in

now

Area =7/4*10²cot(180/7)=363.39in²

Can someone please help me? i’ve asked twice but people didn’t comment to help! If you’re not gonna help please don’t comment!! I’m not able to open any files, so its best if you tell me or explain the answers..

Answers

Answer:

lenth = x= 12cm

Breadth = y = 8cm

Step-by-step explanation:

Given :

The length of a rectangle is 4 cm more than its width

The area of the rectangle is 96 cm²

To Find :

Width of the rectangle.

Solution :

Let the length of the rectangle be x cm.

Let the breadth of the rectangle be y cm.

Case 1:

➣  _____(1)

Case 2 :

We have the formula for area of the rectangle as follows :

Where,

l = length → x cm

b = breadth → y cm.

Substitute, x = 96/y in equation 1,

Divide by minus sign,

As per assumption, y = breadth of the rectangle.

•°• y = -12 is not acceptable.

Substitute, y = 8 in equation 1,

graph below.
Plumbing Jobs
Total Charge
(in dollars)
225
200
175
150
125
100
75
50
25
5
0 31 2 3 4
Number of Hours
4.
What is the slope of the line graphed
above?

Answers

Gawa nyo hindi Ko rin alam

8. The sum of three consecutive multiples of 11 is 759. Find the multiples.

Answers

Answer:

252, 253, 254

Step-by-step explanation:

[tex] \frac{759}{3} \\ = 253[/tex]

253 is the median. so the multiples will be 252, 253, 254

Here Tran 1 more I appreciate it

Answers

Step-by-step explanation:

The top and bottom horizontal lines are 11 units long and the left and right vertical lines are 9 units long. Dilating the logo by a factor of one-half means that these lengths will grow longer by 50%. Hence the horizontal lines will get longer by 5.5 units and vertical lines will grow longer by 4.5 units. The diagonals should also increase in length accordingly.

75% of 60 is what number?
I give brainliest!!!!

Answers

Answer:

it is 45

Step-by-step explanation:

Find the possible value of "a" using the distance formula.
(4,-1) and (a,5) with d = 10

Answers

Answer:

[tex]a=12\text{ or } -4[/tex]

Step-by-step explanation:

The distance formula is given by:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]

We are given the two points (4, -1) and (a, 5). The distance between them is 10.

Let (4, -1) be (x₁, y₁) and let (a, 5) be (x₂, y₂). Substitute:

[tex]10=\sqrt{(a-4)^2+(5-(-1))^2}[/tex]

Solve for a. Square both sides and simplify:

[tex]100=(a-4)^2+(6)^2[/tex]

Simplify:

[tex]64=(a-4)^2[/tex]

Take the square root of both sides. Since we are taking an even root, we will need plus/minus. Hence:

[tex]\pm\sqrt{64}=\pm8=a-4[/tex]

Solve for a:

[tex]a-4=8\Rightarrow a=12\text{ or } a-4=-8\Rightarrow a=-4[/tex]

So, our two possible points are (12, 5) or (-4, 5).

The swimming pool is opening hours a day the pool manager must divide pool time equally among five groups camp; camp swim team, swim lessons, family swim, and open swim how much time should she allow for each group?

Answers

Answer:

1.6 hours

Step-by-step explanation:

Number of opening hours a day = 8

Number of groups = 5

Dividing the number of opening. Hours equally among the 5 groups :

8 hours / 5

= 1.6 hours per group per day

Alan wants to pour 90.26 grams of salt into a container. So far, he has poured 65.1 grams. How much more salt should Alan pour?

Answers

Answer:

25.16 grams

Step-by-step explanation:

Amount Alan should pour more = Amount he wants to pour - amount he has poured

90.26 - 65.10 = 25.16 grams

Please please help! I'll give brainliest if my buttons don't lag! D:


A box in the shape of a rectangular prism has a length of 3 5/8 inches, a width of 2 1/2 inches, and a height of 4 inches. What is the volume of the box?

Answers

Answer:

36 1/4 in³

Step-by-step explanation:

v = 3 5/8 * 2 1/2 * 4

Convert to improper fractions

v = 29/8 * 5/2 * 4/1

Cancel

v = 29/2 * 5/2 * 1/1

Multiply

v = 145/4

Reduce

v = 36 1/4 in³

A right triangle has a leg of 11 and a hypotenuse of 16. Find the missing leg (in simplest radical form)
A 915
B. 1572
C. 3V15
D.V377

Answers

Answer: d

Step-by-step explanation:

Kevin took his car to Dwain's Automotive to have the engine replaced. Kevin was
told that at the most, the total bill for parts and labor would be $6,300. The cost of
the parts was $3,900. How much could Kevin expect to pay for labor?

Answers

Answer:

Step-by-step explanation:

$2400 in labor

How do you work out the area of a triangle? ​

Answers

(Base x Height) / 2 is the formula
Area= 1/2 •base•height

PLEASE HELP!! easy question!

Answers

Answer:

A. A dilation with center (0,0) and scale factor [tex]\frac{1}{2}[/tex] maps ΔABC to ΔADE.

Step-by-step explanation:

Is 8.33865 irrational or rational

Answers

Answer:

Irrational

Step-by-step explanation:

A rational number can be made by dividing two integers, thereby, 8.33865 is an irrational number.

Hope this helps!

It’s an Irrational number
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