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
Helga [31]
4 years ago
14

A red blinking light blinks every 18 seconds, while a yellow blinking light blinks every 12 seconds. If both lights start at the

same time, after how many seconds will they next blink at the same time? A) 6 B) 18 C) 36 D) 54
Mathematics
2 answers:
Nikolay [14]4 years ago
5 0
Least common multiple because that's when the numbers meet....... so the answer is C.
Mice21 [21]4 years ago
4 0
Option C, 36, because it is the LCM (Least common multiple)
You might be interested in
Out of 90 scientists who study dinosaurs, 30 study the T-Rex, 22 study the Brontosaurs and 10 study both. How many of this group
adell [148]

Answer:

it 152 u have to add 3 time like this

90+10+30+ it gives you 152

Step-by-step explanation:

hope this works or help

4 0
2 years ago
Factor x^2 + 2x + 4 i am confused
3241004551 [841]

Answer:

x^2 +2x +4

x^2 +2x +(2/2)^2-(2/2)^2+4

(x+1)^2-1+4

(x+1)^2+3=0

(x+1)^2= -3

(x+1)=  ±√-3

Since a negative number cannot be square rooted,

there are no solutions to this equation.

Hope this helps:)

6 0
3 years ago
A 9.3 m<br> b. 13.3 m<br> C. 18 m<br> d. 21 m<br><br> Which answer is it
Novosadov [1.4K]

Answer:

I would say A

Step-by-step explanation:

hmu if you need more help

7 0
3 years ago
A recipe calls for 1 1/2 gallons of chopped onions.How many pounds of onions should you use if one cup of chopped onions weigh 6
Dvinal [7]

Answer:

15 pounds of onions are needed in the recipe.

Step-by-step explanation:

Total gallon of chopped onion needed for the recipe  = 1  1/2 gallons

Solving the mixed fraction, we get

1\frac{1}{2}  = 1 + \frac{1}{2}  = 1 + 0.5 = 1.5

So, the chopped onion needed = 1.5 gallons

Also, 1 gallon =  160 ounces

So, 1.5 gallon = 1.5 x (160) ounces  = 240 ounces

⇒ 1.5 gallon = 240 ounces

Now, 1 ounce  = 0.0625 pounds

⇒ 240 ounces  =   240 x 0.0625 pounds = 15 pounds

Hence, 15 pounds of onions are needed in the recipe.

6 0
3 years ago
Find the sum of 5a and -9a
kari74 [83]

Answer:

-4a

Step-by-step explanation:

5a + -9a = -4a

hope this helps

7 0
3 years ago
Read 2 more answers
Other questions:
  • Nina mixed three different solutions in her lab. Solution A has a volume of liter. Solution B has a volume of liter. Solution C
    13·1 answer
  • A fossil is 172 mm long how many meters long is it
    13·2 answers
  • The gas tank is 20% full. At $3.00 per gallon of gas, find the cost to fill the tank. (1 gal = 231 in.3)
    12·1 answer
  • What expression equals 1/2(2n+6)
    6·2 answers
  • Use Kelly’s steps to simplify this expression.
    10·2 answers
  • Lisa is building 5 identical birdhouses. If she has
    14·1 answer
  • Isaac has 21 green marbles and 7 blue .He wants to place them in identical groups without any marbles left over.What is the grea
    7·1 answer
  • Solve the equation and<br> Show the steps in your solution.
    10·2 answers
  • Find the slope of the line containing the pair of points.<br> (-8,-2) and (6,3)
    14·1 answer
  • Which of the following numbers are composite 47 or 12 or 16 or 43 which number is it
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!