Mathematics High School

Light A flashes every 8 seconds.
Light B flashes every 20 seconds.
Both lights flash at the same time.
Work out how long it will take for both lights to flash at the same time
again.

Answers

Answer 1

Answer:

40 seconds

Step-by-step explanation:

8         20

16        40

32

40

40 seconds

Answer 2

It will take 40seconds to both the lights to flash at the same time again.

What is Least common multiple?

" Least common multiple is defined as the smallest common multiple of the given set of numbers."

According to the question,

Given ,

Time to flash Light A is  every 8 seconds.

Time to flash Light B is every 20 seconds.

Condition given

Both the lights flash at the same time

Least common multiple (8, 20) = 40seconds

Light A flashes in

8seconds , 16seconds , 24seconds , 32seconds, 40seconds

Light B flashes in

20seconds , 40seconds

Hence, both the light flashes at the same time again is at 40seconds.

Learn more about least common multiple here

https://brainly.com/question/11533141

#SPJ2

Related Questions

A pen stand costs ₹120. How many pen stand can be bought for ₹1440​

Answers

1440 divided by 120 = 12 pen stands

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Answer:

The third one. A trend line does describe data patterns.

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I am going by the numbers on the pictures;

1) 2in, 4in, 6in

2) 2ft

3) 4cm

4) 18.55mm and 42.35

5) I am not really sure, if the picture is represented by the 28, the the object would be smaller, if the picture is represented by the 4 the object would be bigger.

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Answers

opposite angle, so try 6
i’m not too sure sorry
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a line has a slope of -3, so it's equation has the form y= -3x + b. the line passes through the point (1, -2). what is the y-intercept, b, of the line? ​

Answers

Answer:

y-intercept = 1

Step-by-step explanation:

y = -3x + b

(1 , -2)

Plugin the equation

-2 = -3*1 + b

-2 = -3 + b

-2 + 3 = b

1 = b

ASAP I NEED THE ANSWER NOW

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Angle sum property of a triangle :

here, addition of all angles of triangles should be 180° , and hence,

6x = 120°

===> x = 20°

hence, option B.) is correct.

B.) (x+5) °+(3x) °+(2x+55) °=180° ; x=20°

What's true about a regular polygon?

Answers

Answer:

Both the angles and sides are congruent.

Answer:

B

Step-by-step explanation:

I think

Which of the following is equivalent to
8/9

Answers

the answer is b ! ;)

What is the length of segment of A’B?

Answers

Answer:

8

Step-by-step explanation:

8

if both triangles are the same, the lengths will be the same

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Answers

Answer:

-2

Step-by-step explanation:

You can see that the line is passing through the negative point, which is -2.

I hope this helped!

~natasha

At a high school there was a survey to find out how many people used different forms of transportation. The study found that 1/4 of the students were taken by car to school, 42% took the bus and the rest walked or took public transportation. There was a total of 600 students. How many students were taken by car?


150
170
200
225

which one ^

Answers

1/4 or 25% were taken by car of the 600
600 x .25 = 150
150 is the answer

find x: 9(2x+1)=81(3x+2)​

Answers

Answer:

Exact form: x =  -17\25

Decimal form: x = -0.68

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Answers

Answer:

X>3

Step-by-step explanation:

i need this
ctugkvhjkibnlbk;vhiglcufxoryifcuglvihk;b j;hviglucforxiy6eryfcuglvhk

Answers

Answer:

11(7 + 4) = 11 × 7 + 11 × 4

Step-by-step explanation:

11(7 + 4) = _ x 7 + 11 x _

use distributive property:

11(7 + 4) = 7 x 11 + 7 x 11

Answer:

11 * 7 + 11 * 4

Step-by-step explanation:

given 11(7+4)

we need to use distributive property

To do so we multiply 11 by whats inside of the parenthesis

so 11(7+4) is equivalent to 11 * 7 + 11 * 4

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Answers

Answer:

70 ft

Step-by-step explanation:

WHO WANTS SOME BONELESS PIZZA ??

The ratio of french fries to packets of ketchup in Philip's bag is 8:1. What does this mean

Answers

Answer:

. B. For every 8 french fries, there is 1 packet of ketchup

Step-by-step explanation:

THIS ARE THE OPTIONS FOR THE QUESTION

A. There are 7 more french fries than packets of ketchup. B. For every 8 french fries, there is 1 packet of ketchup. C. For every 8 packets of ketchup, there is 1 french fry. D. There are 8 more french fries than packets of ketchup.

Ratio expresses quotient of two mathematical expressions. It gives relationship in term of quantity, amount existing between two or more things. From the question, it shows that when ever there is 8 french fries, there would be 1 packet of ketchup. I.e french fries and ketchup are in ratio of 8:1

HELP ME ASAPPP PLZZZZ

The blueprint for an office building uses a scale of 2 cm.:3.5 m. The height of the actual office building is 259 m. What is the height of the office building on the blueprint?

Answers

Answer:

150 cm

Step-by-step explanation:

So the scale is 2 cm on the blueprint = 3.5 meters in real life.

Basically you can just divide the height of the building by 3.5 meters:

259/3.5=75

There are 75, 3.5 meters in 259 meters

Since 3.5 meters on the print is 2 cm

You need to multiply the number of 3.5 meters by 2:

75*2=150

150 cm

Which of the following is a reason for needing to acquire a 1040X form?

Answers

Answer: If you ever discover an error on a tax return, realize you qualify for deductions or credits you didn't take, or forgot to include some income, you may be able to amend your return by filing a Form 1040X.

Step-by-step explanation:

A flower shop made 200 bouquets to
sell on Mother's Day. If the shop sold
190 of the bouquets, what percent
did they have left over?

Answers

It’s 10 just subtract it then u get your answer

From the set {2, 6, 42), use substitution to determine which value of x makes the equation true.
6(x + 40) = 252

Answers

have u got a answer?

Hiiooo can someone please help me with this ❤️

Answers

Answer:

3.2

Step-by-step explanation:

ABCD and JKLM are similar. To find the x, first find the ratio for all of the sides.

AD and JM are similar --> 2.4 / 3 = 0.8

BC and KL are similar --> 4 / 5 = 0.8

DC and ML are similar --> 2.4 / 3 = 0.8

AB and JK are similar --> 4 × 0.8 = 3.2

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) tan C
с
45
36
to
27
А

Answers

Answer:

36. 1193 or 33.12 degrees rounded

Step-by-step explanation:

Tan = opp/adj

Tan C = 27/37

Tan inverse (.729 . . .) = C

= 36. 1193 or 33.12 degrees rounded

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Answers

Answer:

B is (-2,-4)

Step-by-step explanation:

For each pair of pants, Pedro has 2 shirts. Which models show this relationship? Check all that apply.

Answers

Step-by-step explanation:

Given - For each pair of pants, Pedro has 2 shirts.

To find - Which models show this relationship?

Proof -

Let Pedro has total number of pair of pants = x

Now,

As given

For 1 pair of pants , Pedro has total number of shirts = 2

⇒For x pair of pants , total number of shirts = 2x

So, Total number of clothes Pedro has = x + 2x = 3x

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n-6=2n-n

pls help solve :)

Answers

Answer:eorder the terms:

-6 + n = 2n + -1n

Combine like terms: 2n + -1n = 1n

-6 + n = 1n

Solving

-6 + n = 1n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-1n' to each side of the equation.

-6 + n + -1n = 1n + -1n

Combine like terms: n + -1n = 0

-6 + 0 = 1n + -1n

-6 = 1n + -1n

Combine like terms: 1n + -1n = 0

-6 = 0

Add '6' to each side of the equation.

-6 + 6 = 0 + 6

Combine like terms: -6 + 6 = 0

0 = 0 + 6

Combine like terms: 0 + 6 = 6

0 = 6

Simplifying

0 = 6

Combine like terms: 0 + -6 = -6

-6 = 6 + -6

Combine like terms: 6 + -6 = 0

-6 = 0

Step-by-step explanation:

Answer:

-6 = 0n

Step-by-step explanation:

n - 6 = 2n - n

n - 6 = n

-n        -n

-6 = 0n

I think you might have left something out but this is the answer for the equation you posted. Please let me know if there are more exponents or factors I am missing!

pls help our teacher didn’t explain how to solve these. also show work

Answers

Answer:

15) f = 18

3f = 54

6f = 108

16) k = 69

Step-by-step explanation:

15)

3f + 6f + f = 180

10f= 180

f = 18

16)

42 + k + k = 180

42 + 2k = 180

2k = 138

k = 69

HELPP MEEE!
7th gradeee

Find the circumference of the circle. Use 3.14 or 22/7 for TT. Round to the nearest tenth if necessary.

I’ll mark you brainliest!

Answers

47.1

the formula of circumference is 2×radius×pi.. so given=radius=7.5

pi=3.14

2×7.5×3.14=47.1

QUESTION IN THE PICTURE

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Answers

Answer:

All real numbers

Step-by-step explanation:

All vertical parabolas have a domain of all real numbers

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Answer:

0,7 and 21,0

Step-by-step explanation:

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Answer:

they are both c

Step-by-step explanation:

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