The temperature of one furnace is 1,200°C and cools at a rate of 15°C per minute. The temperature of another furnace is 900°C and is heated at a rate of 5°C per minute. After how many minutes will the furnaces be the same temperature? Write the answer as a whole number or decimal. __ minute(s)

Answers

Answer 1

Step-by-step explanation:

how many cups of water do you need to fill fill one jar


Related Questions

Solve the system of linear equations below.

6x + 3y = 33
4x + y = 15


A x = 2, y = 7

B. X = -13, y = 7

C x = -2/3, y = 12*2/3

D. x = 5, y = 1

Answers

Answer:

A

Step-by-step explanation:

6x+3y=33 <=> 2x+y=11<=>4x+2y=22 (1)

4x+y=15 (2)

(1)-(2) <=> y=7

Answer:

A x = 2, y = 7

Step-by-step explanation:

6(2)+3(7)= 33

4(2)+(7)=15

10a) Beatrice has an income of
$40 000 in one year.
She pays no tax on the first
$10 000 of her income;
10% tax on the next $10 000 of her income;
25% tax on the rest of her income.

Calculate:
a) the total amount of tax Beatrice pays,

b)the total amount of tax as a percentage of the $40 000.

10b) Beatrice pays a yearly rent of $10 800.
After she has paid her tax, rent and bills, she has $12 000.
Calculate how much Beatrice spends on bills.

Answers

Answer:

  a) $6000 tax

  b) 15%

  c) $11,200 for bills

Step-by-step explanation:

a)

Beatrice pays 10% on the second $10,000 of her income, which is ...

  0.10×$10,000 = $1000

and she pays 25% on the amount over $20,000, which tax is ...

  0.25×($40,000 -20,000) = $5000

The total amount of tax Beatrice pays on her $40,000 income is ...

  $1000 +5000 = $6000 . . . . tax on $40,000

__

b)

The tax as a percentage of $40,000 is ...

  $6,000/$40,000 × 100% = 15% . . . . percentage of income paid in tax

__

c)

The amount left after tax, rent, and bills is ...

  $40,000 -tax -rent -bills = $12,000

  bills = $28,000 -tax -rent

  bills = $28,000 -6,000 -10,800 = $11,200

Beatrice spends $11,200 on bills.

can someone help me with these 3 pls?

Answers

The answer is definitely 21 cause yk 21

Please help I do not understand what to do or what the answer is

Answers

Answer:

Step-by-step explanation:

[tex](x_{1} ,y_{1}) = (-3 , -4) \\\\(x_{2},y_{2}) = (-7 ,16)\\\\\\Slope=\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\\=\dfrac{16-[-4]}{-7-[-3]}=\dfrac{16+4}{-7+3}\\\\=\dfrac{20}{-4}\\\\=-5[/tex]

(1 , -3) & ( 1 , 0)

The x-coordinates in the points are unchanged. So, the line is parallel to y-axis.

Slope is undefined.

3) (0,2)  , (4 , 0)

[tex]Slope =\dfrac{0-2}{4-0}=\dfrac{-2}{4}=\dfrac{-1}{2}[/tex]

A high school drama club is selling tickets for the spring production. One day the president sold 12 adult tickets and 5 child tickets for a total of $169. The next day the president sold 22 adult tickets and 10 child tickets for a total of $314. Let a represent the cost of one adult ticket. Let c represent the cost of one child ticket. Which system of equations will solve for a and c? 12 a 5 c = 314. 22 a 10 c = 169. 12 a 5 c = 169. 22 a 10 c = 314. 5 a 12 c = 314. 22 a 10 c = 169. 22 a 5 c = 169. 12 a 10 c = 314.

Answers

Answer:

12a + 5c = 169

22a + 10c = 314

Step-by-step explanation:

if a = adult tickets and c = children's tickets

12 adult tickets and 5 children's tickets costs 169 dollars

12a + 5c = 169

Also, 22 adult tickets and 10 children's tickets cost 314 dollars

22a + 10c = 314

Answer:

Its D :)

Step-by-step explanation:

Have a good day.

Heyy , help me do this please and thank you?:

Answers

Answer: 18 fliers

Step-by-step explanation:

1/3 of 63 is 21.  Thus, the remaining fliers are 42.

4/7 of 42 is 24.  Thus, the remaining fliers are now 18.

Hope it helps :)

sand is falling off a conveyor in a conical pile at a constant rate of 2 cubic yards per minute. The height of the sand is equal to the radius of the pile of sand on the ground. If the cone-shaped pile is 3 feet tall now, how tall will it be in one hour?​

Answers

The volume of a cone is (1/3)πr2h.

In this problem r=2h or h=(1/2)r

Hence V = (1/6)πr3

dV/dt = (1/2)πr2 dr/dt

With this information you should now be able to answer the question. Remember the relation between r and h!

never mind i was right

im also so sorry if you dont understand or its not one of the answers

Answer:

t a sand and gravel plant, sand is falling off a conveyor, and onto a conical pile at a rate of 10 cubic feet per minute. The diameter of the base of the cone is approximately three times the altitude. At what rate is the height of the pile changing when the pile is 15 feet high?

Step-by-step explanation:

1. The diameter of each tire on a model car is 10.668 mm. The actual diameter of a car's tire is 5.29 X 102 mm. About how many times larger is the actual diameter of a car tire than the diameter of the tire on the model car? A 5 times B 50 times +90 100 times D 500 times​

Answers

The number of times the actual diameter is larger than the model is 50 times.

A tire has the shape of a circle. The diameter is line that goes through the center of a circle and divides the circle into two.

In order to determine how many times larger the actual diameter is greater than the model, the actual diameter would be divided by the diameter of the model.

5.29 x 10² ÷ 10.668

529 ÷ 10.668

= 49.6

= 50 times

Please find attached an image of a circle. To learn more, please check: https://brainly.com/question/13590859

Two pillars of height 8 ft each with four faces of the gate of a stadium have one-one pyramid of height 4 ft each having same base on their tops. The base of each pillar is 6 ft × 6 ft. If the pillars with pyramid are painted at rate of Rs 89 per sq.ft , what will be the total cost? [ Please include figure too]

Help!! ~Thanks in advance! :)​

Answers

Answer:

₹ 44856

Step-by-step explanation:

There are 2 pillars, two right prisms of dimensions 6x6x8 ft, two right pyramids of dimensions 6x6x4 ft on top of prisms.

There will be 4 faces of each painted.

Area of each prism face:

6*8 = 48 ft²

Total area of prism faces:

8*48 = 384 ft²

Slant height of pyramid faces:

s = √h²+(a/2)², where h- height of pyramid, a - side of bases = √4²+(6/2)²= √16+9 = √25 = 5 ft

Area of each face of pyramid:

A = (1/2)*6*5 = 15 ft²

Total area of pyramid faces:

8*15 = 120 ft²

Total area to be painted:

384 + 120 = 504 ft²

Cost of paint:

504*89 = 44856
☆Answer :

Total cost painted = 44,856

Answer in the picture.

Evaluate the expression for a = -13.

Answers

Answer: -4

Step-by-step explanation: (9)+(-13)                                                                         9+−13                                                                                                                           9−13                                                                                                                           −4                                                                            

sally has 10 cups of oatmeal. she needs 1/4 cup of oatmeal to make 1 batch of cookies. how many batches of cookies can sally make

Answers

40
10/.25 =40 .25 is equal to 1/4 . therefore she can make 40 batches of cookies

3.5x^3-2.3x^2+1.4x+15.6-1.2x^3+4.5x^2-0.3x-3.2

Answers

Answer: 12.4 + 1.1x + 2.2x^2 + 2.3x^3

Step-by-step explanation:

add the like variables

In a group of dogs and their owners, there are exactly 20 heads and 64 legs. How many dogs are in the group

Answers

Answer:

If we assume that everyone in the group is an owner, we would have

[tex]20*2=40[/tex] legs.

[tex]64-40=24[/tex] legs

Therefore, we need 24 more legs.

These 24 additional legs can be made from the difference of legs between the owners and dogs.

In this case, dogs have [tex]4-2=2[/tex] more legs than an owner.

24 ÷ 2 = 12.

There are 12 dogs in the group.

think of two numbers which when add give 5 and substracts give 1​

Answers

Answer:

3 and 2

Step-by-step explanation:

3+2=5

3-2=1

Hope this helps!!

what is the equation to solve this

Answers

Answer:

p=(180.50-19.50)/23

Step-by-step explanation:

I would really like help

Answers

Answer:
3 -25.875
4 -144
5 24

Answer:

[tex] \\ • \: \frac{1}{8} + (2 - 4 \times 7)[/tex]

[tex] \\ = \frac{1}{8} + (2 - 28)[/tex]

[tex] \\ = \frac{1}{8} + ( - 26)[/tex]

[tex] \\ = \frac{1}{8} - 26[/tex]

[tex] \\ = \frac{1 - 208}{8} [/tex]

[tex] \\ = \frac{ - 207}{8} [/tex]

[tex] \\ = - 25 \frac{7}{8} \: \: or \: \: - 25.875[/tex]

[tex] \\• \: 20 \times 3 - 7(8 \times 9)[/tex]

[tex] \\ = 20 \times 3 - 7 \times 72[/tex]

[tex] \\ = 60 - 504[/tex]

[tex] \\ = - 444[/tex]

[tex] \\ • \: 23 - ( \frac{4}{2} ) + 7 - 4[/tex]

[tex] \\ = 23 - 2 + 7 - 4[/tex]

[tex] \\ = 23 + 7 - 2 - 4[/tex]

[tex] \\ = 30 - 6[/tex]

[tex] \\ = 24[/tex]

[tex] \frak {\overbrace{\underbrace{{{hope \: it \: helps}}}}}[/tex]

Find the length of the indicated
side of the similar figure.
24
18
24
x =
[?]
Enter the nutriber that belongs in the green box

Answers

10,368 that the answer
since they’re similar triangles, you can use the vertical legs to find the ratio between them: 24/18. make it equal to the other sides since the ratio should be equal, so the formula is 24/18=X/24, when solved the answer should be 32 :)

please help I will give 30 points but I need this answer please.

Answers

whats the question???

also it says 5 points-

What multiple of five is also a factor of five

Answers

Hello, hope you are having a remarkable day. :)

These are the multiples of 5:

5, 10, 15, 20, 25, 30, 35...

These are the factors of 5:

1, 5

As we can see, the number 5 is both a multiple of 5 and a factor of 5.

Hope it helps. Ask me if you have any queries.

~An emotional teen who helps others with joy

Good luck.

1-3. Name the radii.

Answers

Where’s the questions?

A chartered vacation will cost eva $1,250 plus $45 per day for food. If Eva wants to spend less than $1,700, how many days can she travel?

Answers

Answer:

She can travel for 10 days

Step-by-step explanation:

first you do 1,250 divided by 1,250 will equal 0. Then you do the other side 1,700- 1,250 =450. Then you do 450 divided by 45 and you will get 10

Hope this helps you out!

Write an equation of the line that passes through each point with the given slope.
(9,-8), m=
4
book
y = -43 - 44.
y = 4x - 44
y = 40 - 27
y = 4.1 +44
Question 6
1 pts

Answers

Answer:

Step-by-step explanation:

what is 2234x44321=?

Answers

Answer: 99013114

Step-by-step explanation: Due to the solution to your question. 2234x44321= 99013114. This is because we multiply each digit to its own other digit.

15 POINTS, to lazy please help.

Answers

Answer:

(2, - 1 )

Step-by-step explanation:

The solution to the system is at the point of intersection of the 2 lines.

They intersect at (2, - 1 ) ← solution

Answer:

1427832.087y4441x6.7

Find a value c in the interval [0,3] such that f(c) is equal to the average value.

Answers

Answer:

1.5

Step-by-step explanation:

Numbers in the interval are 0, 1, 2 and 3

Average Value = (0+1+2+3)/4=1.5

The average value of the numbers in the interval {0,3} is 1.5.

What is an average?

Average is defined as the ratio of the sum of the number of the data sets to the total number of the data. The average actually determines the middle value of the data.

Mean is defined as the ratio of the sum of the number of data sets to the total number of data.

Given that the value c is in the interval [0,3]. The interval is written {0,1,2,3}.

The average of the numbers is calculated as,

Average Value = (0+1+2+3)/4

Average Value =1.5

Therefore, the average value of the numbers in the interval {0,3} is 1.5

To know more about an average follow

https://brainly.com/question/20118982

#SPJ2

what is the gcf of 56 and 92

Answers

Answer:

im pretty sure its 4!

Step-by-step explanation:

56/4=14

92/4= 23

and i dont think there are any greater numbers that factor into both 56 and 92

hope this helps!

Answer:

4

Step-by-step explanation:

1) Draw factor trees - split numbers into smaller numbers, circle any prime numbers

2) Draw a venn diagram

3) Any circled prime numbers that are the same go in the middle column.

4) Any remaining numbers go in the left or right circle.

5) GCF = multiply everything in middle column.

Hope this made sense! <3

Perform the indicated operation and express the result as a simplified complex number in the form a+bi. Do not put any spaces between your characters. If your answer includes a number that is not an integer type it as a decimal rounded to the nearest hundredth.
(3+4i)/(2-i)
simplifies to a+bi where:

A=

B=

Answers

9514 1404 393

Answer:

  0.40+2.20i

Step-by-step explanation:

To clear the denominator of its imaginary part, multiply numerator and denominator by the conjugate of the denominator.

  [tex]\dfrac{3+4i}{2-i}=\dfrac{(3+4i)(2+i)}{(2-i)(2+i)}=\dfrac{6-4+3i+8i}{4+1}=\dfrac{2+11i}{5}\\\\=\boxed{0.40+2.2i}[/tex]

_____

Additional comment

This "multiply by the conjugate" is also used to clear radicals from the denominator. It takes advantage of the factoring of the difference of squares:

  (a -b)(a +b) = a² -b²


Use the ALEKS calculator to write9/16
as a decimal rounded to the nearest hundredth.

Answers

9/16 = .5625

Rounding to the nearest hundredth, the answer is .56

Find the greatest common factor of 21 and 46.

Answers

Answer:

1

Step-by-step explanation:

Hope this helps! Have a great day ahead. Tell me if I'm wrong :) Stay Safe <3

Answer:

1

Step-by-step explanation:

they are both co-prime (numbers that have a common factor of only 1)

Lines m and n are parallel. Find the following angle pairs in the diagram. if you cant find any, write none.

Answers

Answer:

1. Alternate exterior: None

2. Corresponding angles: None

3. Same side exterior angles: <1 and <5

4. Alternate interior: <3 and <4

5. Same side interior: <2 and <4

Step-by-step explanation:

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