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
Readme [11.4K]
3 years ago
15

If a green light blinks every 4 seconds and a yellow light blinks every 5 seconds. When will both lights blink at the same time?

Mathematics
2 answers:
mixer [17]3 years ago
5 0

Answer:20 seconds

Step-by-step explanation:

4=4,8,12,16,20

5=5,10,15,20

Andre45 [30]3 years ago
4 0

Answer:

20 seconds

Step-by-step explanation:

i think this is right

You might be interested in
What is the nth term in 3,9,15,21,27?
PtichkaEL [24]
Look at the equation backwards, its minus 6 every time. so therefore the ninth term would be 51. double check yourself count up + 6 til you get to the ninth term! :)
6 0
3 years ago
Calculate the side of a square whose perimeter is 36m<br>Show working<br>Step by step explanation​
Pie

Answer:

One side is 9 m

Step-by-step explanation:

Perimeter = 36 m

Perimeter = 4a

a = P/4

a = 36/4

a = 9

5 0
3 years ago
Read 2 more answers
An illusionist needs up to 10 volunteers for a show. She needs no fewer than 4 female volunteers. Let x represent the number of
Sliva [168]

The <em><u>correct answers</u></em> are:

B- x + y ≤ 10 ; and D- x ≥ 4

Explanation:

The illusionist needs at least 4 female volunteers.  This means he could use 4 or more; this means x, the number of female volunteers, is greater than or equal to 4:

x ≥ 4

The total of number of volunteers needed is up to 10.  This means the illusionist can use 10 or fewer people; this means the total is less than or equal to 10.

The number of female volunteers is x and the number of male volunteers is y; together they create the expression x+y.  This gives us

x+y ≤ 10

7 0
3 years ago
Read 2 more answers
How many days would it take Martin to swim swim 60000 meters
PolarNik [594]

Answer:

300

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help me out please thx​
Margarita [4]

Answer:

b

Step-by-step explanation:

b

3 0
3 years ago
Read 2 more answers
Other questions:
  • The formula I = prt gives the simple interest / earned on an account where an amount p is deposited at an interest rate r for a
    6·1 answer
  • A painting is 18 inches wide. It is placed inside a frame with a border that is x inches wide. The total width of the painting a
    10·2 answers
  • Which of the following is a radical equation? x + StartRoot 5 EndRoot = 12 x squared = 16 3 + x StartRoot 7 EndRoot = 13 7 Start
    14·1 answer
  • Is there a faster way for me to remember my mupilying like my 6,7,8,12
    9·2 answers
  • Can someone please help me with this math problem. ​
    8·2 answers
  • Solve for s 2* s= 1.2 what is it​
    12·2 answers
  • What is the slope of the line through (1,-1) and (5,-7)​
    6·1 answer
  • (x-1) (2x+3)<br> answer ill pay bid do what u want only if answer is right btw
    12·1 answer
  • A group consisting of 10 children an adult went to a movie theater children tickets cost 5 each and adults tickets cost 8 each a
    5·1 answer
  • 1.<br>How many seconds are there in 8<br>minutes 12 seconds?​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!