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
marishachu [46]
3 years ago
5

a light flashes every 2 minutes, a second light flashes every 3.5 minutes and a third light flashes every 4 minutes. if all thre

e lights flash together at 8 p.m what us the next time of the day they will all flash together
Mathematics
1 answer:
scoray [572]3 years ago
4 0
Take the LCM of the three numbers. Since 2 is a multiple of 4, you can ignore the two and just take the LCM of 4 and 3.5. Since 3.5 is a decimal, the LCM is just 3.5*4 which is 14. That is how many minutes after 8:00 they will flash together again.<span />
You might be interested in
Name the object that exhibits rotational symmetry.
salantis [7]

Answer:

circular plate

Step-by-step explanation:

Rotational symmetry is attained on a figure if it is possible to achieve the same image of the figure after rotating it. For example , rotating a circular plate marked with numbers 1 to 6 through a 360° rotation, the number marked 1 with attain a position similar like that before rotation.

8 0
3 years ago
Which exponential function models how much a $52,500 car depreciates at 9%
hram777 [196]

Answer:

y = 52500(.91)^x

Step-by-step explanation:

Exponential functions are written y = ab^x where a is the starting point and b is the common ratio. We know the initial worth is 52500 and each year the worth decreases 9% of the original year, making it work 91% of the previous value.

3 0
3 years ago
4. Use the diagram to fill in the blank. Given AB is perpendicular bisector of the CD then AB contains:
aalyn [17]

Answer:

b the center of the circle. pls madk brainliest.

8 0
3 years ago
Solve for x in the equation x − 4 = 7.
Feliz [49]

Answer:

x=11

Step-by-step explanation:

Simplifying X= 7+4

therefore x=11

8 0
3 years ago
Find the value of y for which line a is parallel to line b.
alexdok [17]
Y+38°= 180 beacuse if a and b are parallel they are co interior angles. This means that they will at to 180.

y=180-38= 142°

Answer: 142°

Drew out some hopefully helpful pictures below. Hope they help! let me know if you still have any questions!

6 0
3 years ago
Other questions:
  • A box contains 20 balls, of which 12 are red and 8 are blue. If two balls are to be drawn from this box at random without replac
    10·1 answer
  • Carol spends 17 hours in a 2-week period practicing her culinary skills. How many hours does she practice in 5 weeks?
    11·1 answer
  • 10 POINTS AND BRAINLIEST! <br><br> Calculate the area of the trapezoid, which is not drawn to scale.
    5·1 answer
  • A sample of 900 college freshmen were randomly selected for a national survey. Among the survey participants, 372 students were
    11·1 answer
  • What temperature is 23 above freezing in fahrenheit
    9·2 answers
  • VOTING In a recent school election, 208
    14·2 answers
  • Solve the equation: 25-3x=40<br><br>A. -15<br>B. -5<br>C. -2<br>D. -4​
    15·2 answers
  • F(x) = 4(x + 3)2 , x &gt; 0
    6·1 answer
  • What is the remainder when 12 345 x 54 321 is divided by 9?<br>1<br>2<br>3​
    15·2 answers
  • Whats the diameter and radius? (I'll solve the rest this is just a bit confusing...)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!