Yes; 23+147 = 170
No: 112+48 = 160
Since its asking for a ratio of those who have to those who haven't, the ratio should be-
170 ; 160
Simplified:
34 ; 32 ( divided by 5 )
Answer:
a) 7x words
b) 1000/x days
c) 15000 + 10x words
Step-by-step explanation:
The best way to do this would be to plug in real numbers to see how each situation would play out. For example, for part a, let's say he learns 20 new words each day. One week has seven days, so that would be 20 x 7, which is 140 words. You multiply the # of days by the # of words, which is x.
For part b, if he tried to reach 1000 new words by doing 20 new words a day, you would find how long that would take by doing 1000 / 20, which would give you 500 days. You divide the # of new words he's trying to reach by the # of words a day.
For part c, he already has a set # of new words that he's learned, and now he's just continuing the progress, so you start out with 15000, then add that to 10 new words a day multiplied by # of days (x).
Answer:
31.77% probability the surgery is successful for exactly five patients.
Step-by-step explanation:
For each patient, there are only two possible outcomes. Either the surgery is successful, or it is not. The probability of the surgery being successful for a patient is independent of other patients. So we use the binomial probability distribution 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.
A surgical technique is performed on seven patients.
This means that 
You are told there is a 70% chance of success.
This means that 
Find the probability the surgery is successful for exactly five patients.
This is P(X = 5).
31.77% probability the surgery is successful for exactly five patients.
Answer:
x= - 4
Step-by-step explanation:
can u mark me brainliest
The minimum number of rolls that can be bought is 4.
The first step is to determine the perimeter of the ceiling and the length of its hypotenuse.
Perimeter of the ceiling = perimeter of a square = 4 x length = 4 x 16 = 64 ft
The hypotenuse is the distance from one corner of the ceiling to the other corner of the ceiling. The hypotenuse would be determined using the Pythagoras theorem.
The Pythagoras theorem: a² + b² = c²
where a = length
b = base
c = hypotenuse
16² + 16²
= 256 + 256
= 512 feet
c = √512 = 22.6 feet
Total length = 22.6 feet + 64 feet = 86.63 feet
Minimum number of rolls = 86.63 / 25 = 3.46 = 4
To learn more, please check: brainly.com/question/25779356
