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Ann [662]
3 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]3 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]3 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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Answer: 1.8 s

Step-by-step explanation:

Given

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3 years ago
If 2 pounds of bananas cost $1.89, what is the cost per pound? Show your work
OLEGan [10]
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6 0
3 years ago
2 divided by 1 and 6/7
ale4655 [162]

This problem, as written, requires a bit of guessing regarding your intentions.  My interpretation is that you want to do this division:


    2

----------

 1  6/7

If that's correct, here's what to do:  rewrite 1  6/7 as 13/7 (an improper fraction).

Then divide:

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--------      This is equivalent to the multiplication (2/1)(7/13) = 14/13 (answer)

 13/7

8 0
3 years ago
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