3 is not a perfect / 100 percent square.
If we simplify we get 1.73205081. That is in its simplest form.
y=5x8−678
y
=
5
x
8
−
67
8
.
ITS C !!!!
Answer:
0.9704 = 97.04% probability of getting a cookie with at least 3 chips
Step-by-step explanation:
We only have the mean number of chocolate chips. So we use the Poisson distribution to solve this question.
Poisson distribution:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given time interval.
A well-mixed cookie dough will produce cookies with a mean of 7 chocolate chips apiece.
This means that
What is the probability of getting a cookie with at least 3 chips?
Either we have less than 3 chips, or we have at least 3 chips. The sum of the probabilities of these events is decimal 1.
We want . Then
In which
0.9704 = 97.04% probability of getting a cookie with at least 3 chips
So dad is represented by x
son is represented by y
so x is (x=) 7 times his son (7y)
our first sentence is x=7y
10 years later (x+10, y+10) he will be 3 times as old as his son (x+10=3(y+10))
or 10+x=3(y+10)
so our sentences are
x=7y
and
x+10=3(y+10)
first we subsitute x=7y for x in the second equation
(7y)+10=3(y+10)
7y+10=3(y+10)
we distribute
7y+10=3y+30
subtract 3y from both sides
4y+10=30
subtract 10 from both sides
4y=20
divide both sides by 4
y=5
the son is currently 5 years old
x=7y
subsitute y=5 for y in equation
x=7(5)
x=35
the dad is currently 35 years old
in 10 years
dad is 45 and son is 15
dad=35
son=5