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
Leto [7]
3 years ago
12

one light flashes every 2 minutes and another flashes every 7 minutes. If both lights flash together at 1pm, what is the first t

ime after 3pm that both light flash together again?
Mathematics
1 answer:
vovangra [49]3 years ago
6 0
Light A flashes every 2 minutes while light B flashes every 7. The goal is to figure out when both lights flash at the same time and then figure out the other part later. You have to find the common multiples of 7 and 2. Meaning that you have to find out which number can they both be multiplied into. In this case, it is 14 because 7 can be multiplied by 2 to get 14 and 2 can be multiplied by 7. So if every 14 minutes they flash together at the same time, now you need to find out what time AFTER 3 will they both flash. You know that they both flashed at 1:00 so they will flash again at 1:14 and 1:28 and so on, but you need to find out when is the soonest they will flash after 3. 2 hours after the 1:00 flash will be 3:00 so that is 120 minutes. 120 minutes divided by 14 minutes comes to 8.5 but you dont need the decimal. Just simply multiply 14 by 8 and that comes to 112 minutes and if you add that to 1:00 you get 2:52. so they flashed at 2:52 so the next time they flash will be 14 minutes after 2:52. Sorry for the super long answer
You might be interested in
Which equation has the same solution as
uysha [10]

no se sabe

Step-by-step explanation:

knwiowkwkwnwkkwmwnw w w.qosmsls.w

6 0
4 years ago
A bag contains circular chips that are the same size and weight. There are 8 purple, 4 pink, 8 white, and 2 blue chips in the ba
pishuonlain [190]

Answer:

9/11

Step-by-step explanation:

all the chips other than a pink chip add up to 9.

3 0
4 years ago
Read 2 more answers
Which absolute value function opens down?
ValentinkaMS [17]

See attachment for math work and answer.

3 0
4 years ago
5. Use long division method to calculate 102 024 ÷ 156​
Anna11 [10]
Here is the answer:

3 0
3 years ago
Two sisters decide to take a series of acting lessons. One decides to pay a flat rate of $75, shown as f(x). The other just want
Mandarinka [93]
The answer is f(x) = 75, g(x) = 5x, h(x) = 5x + 75

Let x be the number of lessons.

The <u>flat rate of $75</u> as function f(x) can be expressed as: f(x) = <u>75</u>
<u>$5.00 per lesson x</u> as function g(x) can be expressed as: g(x) = <u>5x
</u>
The combination of two functions (f(x) and g(x)) is the amount the parent should pay:
h(x) = g(x) + f(x)
h(x) = 5x + 75
3 0
3 years ago
Read 2 more answers
Other questions:
  • Nick is building a large box for the school drama department. He is using plywood to construct a box that is 4 feet wide, 1 1/2
    6·1 answer
  • Which rule is an example of rigid transformation?
    9·1 answer
  • A.) 628 yds<br>B.) 914 yds <br>C.) 1856 yds<br>D.) 1228 yds
    15·1 answer
  • In a right triangle the measure of one of the angles is 43 degrees. Sketch a diagram to represent this situation
    11·1 answer
  • 1. Anna mawer man en cha manta fare le enter Sloping the computer savings.
    10·1 answer
  • What’s the correct answer for this?
    15·1 answer
  • What is 14.1% of the 132 mL rounded to the nearest 10th
    8·1 answer
  • So 3=p/4-1 can yall tell me what is p=
    7·1 answer
  • What is the slope (5,7) and (2,-2)​
    9·1 answer
  • Rory earned an 84% on his test. He answered 21 questions correctly. How many total questions were on the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!