1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miskamm [114]
3 years ago
15

There is a string of red and blue lights strung around a window. The red lights blink every 3 second and the blue lights every 5

seconds. How many times will they blink at re same time in one minute?
Mathematics
2 answers:
Vladimir79 [104]3 years ago
8 0

Answer:

They will blink 4 times together in one minute.

Step-by-step explanation:

The amount it takes for them to blink together is the least common multiple between the time it takes for each of them to blink together.

The red light blinks each 3 seconds.

The blue light blinks each 5 seconds.

The least common multiple between 3 and 5 is 15. So they will blink together each 15 seconds.

Each minute has 60 seconds. So they will blink 60/15 = 4 times together in one minute.

Ann [662]3 years ago
7 0

Find the lowest common multiple of 3 and 5, that is 15

the lights will blink together every 15 seconds

in 1 minute blink together \frac{60}{15} = 4 times

that is at 15, 30, 45 and 60


You might be interested in
Marie has 5 apples, Toby takes 2 away. How many does he have less?
Natali [406]

Answer:

2less apples

Step-by-step explanation:

5-2=3. 3+2=5

8 0
3 years ago
Read 2 more answers
PLEASE HELO OK 1,3,4 ITS DUE TOMORROW
sukhopar [10]

#1. The number line goes by intervals of 0.2, so if A is equal to 7.28, then it’ll go in between the first line after 7 and the second line after 7. This is similar with B and C. B will go on the second line after 9, and C will go in between the second and third line after 10.

#3. You started out well. You combine your like terms on the sides of the equation to get 8x - 2 = 4x + 6. Then, you’ll subtract 4x to get 4x - 2 = 6. Add 2 to get 4x =8, then divide by 4 to get x = 2. On the other one, combine your terms to get -6 + 5y = 29. Then, add 6 so you have 5y = 35. Divide by 5 to get y = 7.

#4. When you classify a number, you need to classify it as whatever it is in your disgramdiagram, and the larger ones as well. For example, -2 is an integer, so it is also a rational number. 3/4 is a rational number. The square root of 2 over 2 is an irrational number. 292 is a counting, whole, integer, and rational number. -19/3 is a rational number. 6.9696... is an irrational number. (It has the three dots [...] so it’ll go on forever with no pattern.)

I hope this helps! Please tell me if you need any clarification. :)

3 0
3 years ago
Read 2 more answers
Sorry for the bad picture quality, lol trust me I’m not android user... bUt I really am struggling! Help!-
Klio2033 [76]

Answer:

a to u

Step-by-step explanation:

3 0
3 years ago
8+9x1x2 to the second power it has the 2 above the 2 but I just can't put it there on this
Gnoma [55]
The correct answer is 44
8 0
3 years ago
Taseem’s loose change consists of dimes and quarters. When you ask her how many of each type of coin she has, she gives you the
sweet-ann [11.9K]

The statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

0.1x + 0.25y = 19.9 and

x + y = 100

Let x = number of dimes

y = number of quarters

After solving the above system of equations by substitution method.

\rm \dfrac{398-5y}{2}+y=100

y = 66

\rm x=\dfrac{398-5\cdot \:66}{2}

x = 34

Thus, the statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

4 0
2 years ago
Other questions:
  • A telephone pole is 15 meters tall and a pigeon is standing on the ground 8 meters from the pole. If the pigeon flies from where
    11·1 answer
  • Helpp
    9·1 answer
  • What is the solution to log2(2x^3-8)-2log2x=log2x?
    6·1 answer
  • Please help me right now.
    14·1 answer
  • Which is the graph of f(x) = 2(3)x?
    8·1 answer
  • ASAP<br> -WILL MARK BRIANIST
    5·2 answers
  • The triangle below is equilateral. Find the length of side x in simplest radical form with a rational denominator.
    14·1 answer
  • Help me out here on this question
    9·2 answers
  • Can you solve this triangle:<br> m∠B=47°<br> a=24<br> b=22<br> Please show work, too. Thanks
    14·1 answer
  • 7. If the area of a rectangular wall is 500 square units and its breadth
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!