Is the line through points P (-5,-5) and Q(3,3) parallel to the line through points R (-4,-2) and S (3,2)? Explain.
1 answer:
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Answer:
60 times will they ring together at the same second in one hour excluding the one at the end.
Step-by-step explanation:
Given : Five bells begin to ring together and they ring at intervals of 3, 6, 10, 12 and 15 seconds, respectively.
To find : How many times will they ring together at the same second in one hour excluding the one at the end?
Solution :
First we find the LCM of 3, 6, 10, 12 and 15.
2 | 3 6 10 12 15
2 | 3 3 5 6 15
3 | 3 3 5 3 15
5 | 1 1 5 1 5
| 1 1 1 1 1
So, the bells will ring together after every 60 seconds i.e. 1 minutes.
i.e. in 1 minute they rand together 1 time.
We know, 1 hour = 60 minutes
So, in 60 minute they rang together 60 times.
Therefore, 60 times will they ring together at the same second in one hour excluding the one at the end.
I showed you how to do it in the picture.
<span>Answers:
1.) 4 1/5 = 4.22.) 12 14/15 = 12.93 (3 is repeating so draw a line on top of just the 3)<span>3.) 5 5/32 = 5.156 (the 56 is repeating so draw a line on top of just the 56)
Hope this helps you the </span><span>way you want! </span><span>-Jabba</span></span>
<span>Answers:
1.) 4 1/5 = 4.22.) 12 14/15 = 12.93 (3 is repeating so draw a line on top of just the 3)<span>3.) 5 5/32 = 5.156 (the 56 is repeating so draw a line on top of just the 56)
Hope this helps you the </span><span>way you want! </span><span>-Jabba</span></span>