Add 7 to both sides.
-7+N=20
+7 +7
N=27
answer= 27
hope it helps.......
Answer:
0.9021 = 90.21% probability that 10 or fewer customers choose the leading brand
Step-by-step explanation:
For each customer, there are only two possible outcomes. Either they choose the leading brand, or they do not. The probability of a customer choosing the leading brand is independent of any other customer, which means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
The leading brand of dishwasher detergent has a 30% market share.
This means that
A sample of 25 dishwasher detergent customers was taken.
This means that
a. What is the probability that 10 or fewer customers choose the leading brand?
This is:
In which
Then
0.9021 = 90.21% probability that 10 or fewer customers choose the leading brand
Answer:
110.5
Step-by-step explanation:
208=13+(3-1)d
208=13+2d
-13. -13
195=2d
÷2. ÷2
97.5=d. (d means difference)
13(first term)+97.5=110.5
Answer:
295 minutes
Step-by-step explanation:
It is given that Speedy the Sloth drinks tea at a steady rate of 2/7 cups per hour.
Yesterday she drank 1 cup and today she drank 17/42 of a cup more than yesterday. This means today she drank 1 + 17/42 cups.
Time taken to drink 2/7 of a cup = 1 hour = 60 minutes
Time taken to drink 1 cup = minutes
Time taken to drink 1+17/42 cups = minutes
Since she drinks tea as long as she stay awakes. This means, she stayed awake for 295 minutes today.
Answer:
micheal need 6.15
Step-by-step explanation:
open the document and you will get the show your work part good luck
13.00
6.85-
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6.15
thats
it pretty much the other one just show how i was able to get froom
12 9
0 2 10 10
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1 3. 0 0
− 0 6. 8 5
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0 6. 1 5