This is just a simple multi-step math problem. The first step to finding the answer is to find out the pattern of the chairs. So, we would take two of the numbers, 14 and 6, and subtract 14 from 6.
14 - 6 = 8
So now we know that the difference between the first to rows is 8 chairs. To double check this pattern you would simply subtract 14 from 22.
22 - 14 = 8
Okay, so now we are sure that the pattern is by simply adding 8 to the number of chairs in the row before. Now that we have a pattern all set, there are two different ways to solve this problem, yet I am going to use the longer method. You would simply start from 6 and keep adding on 8's until you would reach the 7th row like so:
6 + 8 = 14
14 + 8 = 22
22 + 8 = 30
30 + 8 = 38
38 + 8 = 46
46 + 8 = 54
So as you can see, the total number of chairs would be 54. This may take a little longer to do, as I happened to use the longer method for this problem. Yet I hope this still helped :)!
Answer:
72
Step-by-step explanation:
To get the number of days that will pass before Brenda cuts her grass and shrubs on the same day will be found using least common multiple:
15=3×5
24=3×8
thus the LCM (24,15)=120 days
She will cut the grass again after 120 days
Answer:
See below.
Step-by-step explanation:
First, factor the numerators and the denominators:
Now, make the two denominators equivalent. To do this, we can multiply the first term by (z+1) and multiply the second term by 2. This will give us:
Now, combine them since they have a common denominator:
This cannot be simplified further.
Answer:
Probability of having two hits in the same region = 0.178
mu: average number of hits per region
x: number of hits
e: mathematical constant approximately equal to 2.71828.
Step-by-step explanation:
We can describe the probability of k events with the Poisson distribution, expressed as:
Being μ the expected rate of events.
If 535 bombs hit 553 regions, the expected rate of bombs per region (the events for this question) is:
For a region to being hit by two bombs, it has a probability of:
