Three bells, A,B and C toll every 5 seconds, 8 seconds and 12 seconds respectively. They all start tolling together. After how many seconds will they all toll together again

Answers

Answer 1

Answer:

120 seconds

Step-by-step explanation:

To obtain the number of seconds they will all till together again, obtain the lowest common multiple of the three bell times :

Bell A :

Multiples of of 5 = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125

Bell B :

Multiples of 8 = 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128

Bell C :

Multiples of 12 = 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132

From the values above, the lowest common multiple is 120, Hence, they'll toll together again after 120 seconds


Related Questions

Susanna baked a cake she and her family ate ⅜ of the cake and gave ⅛ of the cake to her neighbor to eat how much cake does susanna have left

Answers

1/2 of the cake is left

Answer:

They would have 4/8 left or 1/2 reduced

Step-by-step explanation:

Because they ate almost half then gave the last bit to the neighbor so they have 4/8 of there cake left or reduced 1/2 of their cake left

ayo can yall help me plzzz

Answers

Answer:

D

Step-by-step explanation:

because there is no green

Answer:

D. Impossible

Step-by-step explanation:

There are no green folders so he can't pick a green one.

:)

On Friday, 153 people went to the movies in Smalltown. On Saturday and Sunday, 337 people went to the movies. On Friday and Saturday, 391 people went to the movies. How many people went to the movies on each day? Friday:. Saturday:. Sunday:

Answers

Answer:

Friday: 153 people  Saturday: 238  Sunday: 99

Step-by-step explanation:

Subtract 153 from 391 to find the people on Saturday (238). Subtract 238 from 337 to find the people on Sunday (99).

Can you guys help me I’m a big stuck on this one ?!

Answers

Answer:

the first one

Step-by-step explanation:

AC and AE because it look like it’s going in a diff angle

What evidence is there in the document that the marchers were disciplined

Answers

Answer:

The evidence is the statement made in the document where it was said: "You will be beaten but you must not resist; you must not even raise a hand to ward off any blows"

Step-by-step explanation:

The document has been attached. It was from the march by gandhi's followers to the dharasana salt works.

From the document attached, the evidence that they were disciplined is where it was said: "You will be beaten but you must not resist; you must not even raise a hand to ward off any blows"

can someone help me?

Answers

Answer:

You would have 4 nickels and 10 dimes.

4 x 0.05 = 0.20
10 x 0.10 = 100 ($1.00)
$1.00+$0.20=$1.20

Answer: She has 6 nickles and 9 dimes.

Step-by-step explanation:

Let n be the # of nickles. Let d be the # of dimes.

n+d=15

0.05n + 0.1d =1.2

5n+10d=120

5(15-d)+10d=120

75-5d+10d=120

5d=45

d=9

n=15-d

n=15-9

n=6

A spinner with two equal sectors is spun 5 times.

What is the number of possible outcomes?

Answer: 32
Explanation: 2^5

Answers

Answer:

There are 32 outcomes that are possible

Step-by-step explanation:

Find the value of x- helppp

Answers

Answer:

60º

Step-by-step explanation:

A triangle is 180º so you do (180-60)/2 and you get that x=60.

Hope that helps :)

Answer:

Hey love! x = 60

Step-by-step explanation:

Because a triangle adds up to 180 so

180 - 60 = 120 and sense both angles will be the same measure I divide 120 by 2 and get 60 so

x =60 Hope that helps!

Please!!!!!!!
Can someone please help me with this question.
The answer choices are in the picture right along with the question.
I will mark the first person brainliest if they answer with an actual answer not a link.

Answers

Answer:

B.

Step-by-step explanation:

Can anyone help me with this?
Thank you

Answers

1. 3,6

2. 5,6

3. 4,5

(branliest will be appreciated and thanks)

Slope: 3/5
Y intercept: -3
X-intercept: 5

2 3/10x-5/7y-4 5/6y-2 4/5x

Answers

Answer:

-21x+233y/42

Step-by-step explanation:

Answer:

poop

Step-by-step explanation:

poopx607

PLEASE HELP. 20 POINTS

Answers

Answer:

not sure but i think its b

Step-by-step explanation:

A college has thirteen instructors qualified to teach a special computer laboratory course which requires two instructors to be present. How many different pairs of instructors could there be?

Answers

Answer:

156 different pairs will be there.

Step-by-step explanation:

As the order is  essential as we need different pairs therefore permutations will be used.

A permutation is any ordered subset of the objects r selected with regard to their order, from the set of  n distinct objects. It is given by nPr where n> r

Total number is 13 and required number is 2

n= 13 and r= 2

13 P2= 156 possible combinations.

A combination is any subset of the objects r selected without regard to their order, from the set of  n distinct objects. It is given by nCr where n> r

choose the bast description for the real number 34/3

Answers

Step-by-step Answer:

C and D are both correct as fractions. Numbers are NOT irrational because they are a fraction. And concluding decimals are both rational numbers. By using a known formula you can convert reaptedly decimals to a fraction.  

An isosceles triangle has base angles that each measure 42°. Which equation can be used to find z, the measure of the third angle of this isosceles triangle in degrees?

84 + 2z = 180
84 + 2z = 180

42 + z = 180
42 + z = 180

84 + z = 180
84 + z = 180

42 + 2z = 180

Answers

Answer:

84 +z= 180

Step-by-step explanation:

Bases of an isosceles ∆ are equal so 42+42= 84

A pet store donated a percent of every sale to hospitals. The total sales were ​$8,900 so they store donated ​$178. What percent of ​$8,900 was donated to hospitals?

Answers

Answer:

2%

Step-by-step explanation:

Given  data

Sales = $8,900

Donated amount=  ​$178

Percentage of donated sales= Donated amount/ Sales*100

Percentage of donated sales= 178/ 8900*100

Percentage of donated sales=0.02*100

Percentage of donated sales=2%

Hence the percentage is 2%

A survey of 100 high school students provided this frequency table on how to show students to get to school

Answers

Answer:

4/10

Step-by-step explanation:

40 students drive

There are 100 students

40/100 = 4/10

Answer:

2/5

Step-by-step explanation:

What is tip would you give to your waiter if your bill was $56.50 and the tip is 20% of the bill

Answers

$11.30

Step-by-step explanation:

First, convert the 20% to an actual number that can be used in a calculation.

For percents, this is always done by simply dividing the percent (in this case 20%) by 100%.

So, the conversational term "20%" becomes 20% / 100% = 0.20 in terms of a real mathematical number.

Second, you need to find out what 20% of your $56.50 meal cost is. This is always done by multiplying 0.20 by $56.50, or

0.20 x $56.50 = $11.30

So, the amount of tip you are going to leave is $11.30.

This makes the total cost of your meal (to write on your charge slip or other payment)

$56.50 + $11.30 = $67.80.

A rectangle has vertices at: A(0, 0), B(0, 9), C(4, 9), D(4, 0) What is the perimeter of the rectangle?

Answers

Answer:

Rectangle Perimeter = 26

Step-by-step explanation:

Rectangle ABCD , Length = parallel horizontal sides are AB & CD, Breadth = parallel vertical sides = BC & AD

AB segment joining A (0,0) - B (0,9) = 9 units. CD joining C (4, 9) & D (4,0) = 9 units. So, Length = 9 units

BC segment joining B (0,9) - C (4,9) = 4 units. AD joining A (0,0) - D (4,0) = 4 units. So, Breadth = 4 units

Perimeter of rectangle = 2 (Length + Breadth)

= 2 (9 + 4)

= 13 x 2 = 26

9b^2=16 solve using Quadratic

Answers

Answer:

[tex]9b^2=16\\b^2=\frac{16}{9} \\\b=\frac{4}{3}[/tex]

Answer:

±4/3

Step-by-step explanation:

9b² = 16

b² = 16/9

take square root of each side

b = ±4/3

what is the mathematical equation of 9932x6394=

Answers

Answer:

Step-by-step explanation:

63,505,208

can you choose me brainliest?

63,505,208 hope this helped :)

Find the measurement of Dae need help fast​

Answers

Answer:

D = 80 degrees or (76+4) C And F are 70 i think

Step-by-step explanation:

On a farm, the farmer decides to give pizza to her 18 ducks as a special treat. She orders 3 pizzas, and the total price is $26.28. What is the unit price of each pizza?

$4.38
$8.76
$23.28
$78.84

Answers

Answer:

$8.76

Step-by-step explanation:

$26.28 / 3 = $8.76 per pizza

there are two machines that can produce aluminum cans. The newer machine can produce 5400 cans in 180 minutes. It takes the older machine 217 minutes produce that many cans. If the two machines work together, how long will it take them to produce 5400 cans?

Answers

The newer machine works at a unit rate of

(5400 cans) / (180 min) = 30 cans/min

while the older machine operates at

(5400 cans) / (217 min) ≈ 24.88 cans/min

So working together, the two machines work at a rate of about 54.88 cans/min. Producing 5400 cans would then take about

(5400 cans) / (54.88 cans/min) ≈ 98.39 min

Find the perimeter of the figure. Round all figures to the nearest hundredths place.
Isosceles trapezoid

A 70.24 ft
B 74.48 ft
C 79.42 ft
D 92.84 ft

Answers

Answer:92.84

Step-by-step explanation: 39+27+13.5+13.5 because the two sides are longer than 12

The perimeter of the trapezium is 143.94 ft.

We have,

The perimeter of an isosceles trapezium can be found by adding the lengths of all four sides.

In this case, the trapezium has height = 12 ft and parallel sides of length 27 ft and 39 ft.

To find the length of the non-parallel sides we can use the Pythagorean theorem:

a² = (39 - 27/2)² + 12²

a² = 1440

a ≈ 37.95 ft

Therefore,

The perimeter of the trapezium is:

P = 27 + 39 + 2a

P ≈ 27 + 39 + 2(37.95)

P ≈ 143.9 ft

Rounding to the nearest hundredth place,

we get P ≈ 143.94 ft.

Thus,

The perimeter of the trapezium is 143.94 ft.

Learn more about trapezium here:

https://brainly.com/question/22607187

#SPJ7

Solving Similar Triangles. pls help i dunno this:(

Answers

1.y=16 x=8 ||| Because the 12 and 9 are the same side, i just decided to go from there, 9 is 75% of 12, so y and x would be

2.d=24 ||| the smaller triangle once again is 75% of the bigger one.

3.x=6 y=60 ||| the smaller triangle is 1/3 of the bigger one.

4. DE=8  AC=20 ||| The smaller triangle is half of the bigger one.

1. 6 is 75% of 8 and 12 is 75% of 16.

2. 18 is 75% of 24

3. 18/3=6 and 6 is 1/3 of 18; 20 is 1/3  of 60

4. 10 is 1/2 of 20; 1/2 of 16 is 8

Hope this helps.

HELPP will give brainliest NO LINKSSS

Answers

Answer:

you didnt attach anything

Step-by-step explanation:

47 Points | Please help! | Giving Brainliest to correct answer | Reporting false answers

Answers

Answer:

Maria :>

Step-by-step explanation:

because Gross Income is what you take out of your net income. so if your taking something out of it, that means its less.

There are 58 people in a store. 10 of them are employees. 6 come out, 4 come in. 16 leave, and 7 enter

Answers

Answer:

47 people

Explanation:

58 - 6 + 4 -16 + 7 = 47

What should be subtracted from (−5/4 ) to get - 1

Answers

Answer:

-5/4+1/4=-4/4=-1

Step-by-step explanation:

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