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Ann [662]
2 years ago
15

A string of holiday lights at a store has three colors that flash at different times. Red lights flash every fifth second. Blue

lights flash every third second. Green light flashes every four seconds. The store owner turns on the lights. After how many seconds will all three lights flash at the same time for the first time?
Mathematics
2 answers:
Olin [163]2 years ago
5 0

Answer:60 seconds

Step-by-step explanation:

You need to find the least common multiple of 5,3,and 4 witch is 60

-Dominant- [34]2 years ago
4 0

Answer:

60

Step-by-step explanation:

You need the least common multiple of 5, 3, and 4.

5 = 5, 10, 15, 20, 25... 60

3= 3, 6, 9...60

4=4, 8, 12, ...60

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kodGreya [7K]

Answer:

First one.

-3 is added to the previous term.

4 0
2 years ago
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Dogs are inbred for such desirable characteristics as blue eye color, but an unfortunate by-product of such inbreeding can be th
sesenic [268]

Answer:

The probability that the dogs are blue eyed and deaf is 13.02%.

Step-by-step explanation:

We are given the following information in the question:

P(Blue eyes) = 31%

P(Deaf) = 38%

P(Deaf | Blue eyes) = 42%

Formula for conditional probability:

P( A|B) = \displaystyle\frac{P(A \cap B)}{P(B)}

Now, let A be the event where the dog is deaf and B be the the event where dog is blue eyed.

P( \text{ Deaf}|\text{Blue eyes}) = \displaystyle\frac{P( \text{Deaf} \cap \text{Blue eyes})}{P(\text{Blue eyes})}\\\\0.42 = \displaystyle\frac{P( \text{Deaf} \cap \text{Blue eyes})}{0.31}\\\\P( \text{Deaf} \cap \text{Blue eyes}) = 0.42\times 0.31 = 0.1302 = 13.02\%

Hence, the probability that the dogs are blue eyed and deaf is 13.02%.

6 0
3 years ago
in the diagram below ,segment A'B' is the image of segment AB after a rotation by 103 degrees counterclockkwise about point C. W
Helen [10]

Answer:

2

Step-by-step explanation:

6 0
3 years ago
Mary Beth would like to buy a more fuel-efficient vehicle instead of driving her mom's gas-guzzler. Assuming she can find a car
ozzi

Answer:

2x as much

Step-by-step explanation:

First write as an equation:

<u>3000/32*3.75 =</u>

3000/16*3.75

Then that equals:

0.5

So that means her mom's car would be half as efficent as the new one

8 0
3 years ago
Quincy uses the quadratic formula to solve for the values of x in a quadratic equation. He finds the solution, in simplest radic
Alexxx [7]

Answer:

<h2>A. Zero, because the discriminant is negative. </h2>

Step-by-step explanation:

I just did it.

8 0
3 years ago
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