Ailing spent 3/8 of his time studying science he spent 2/5 as much time studying English as science what fraction of aikong stud
1 answer:
Answer:
of aikong study time was spent studying english
Step-by-step explanation:
Given:
Time spent by ailing in studying science= 3/8
Time spent by ailing in studying English= 2/5 as much time studying English
To Find:
Ailing study time was spent studying English=?
Solution:
Let the time spent by Ailing in studying English be X
Then
We know that ailing spent 2/5 as much time studying English to study English
So ,
X=
X=
X=
X=
You might be interested in
The directrix of the parabola is
The parabola equation is given as:
A parabola is represented as:
By comparing both equations, we have:
4p = 1/4 ==> p = 1/16
-k= 3 ==> k = -3
The directrix is represented as:
y = k - p
So, we have:
Take the LCM
Evaluate
Hence, the directrix of the parabola is
Read more about parabola at:
#SPJ1
Answer:
Given that the manufacturers claim is true, the probability that the sample mean area is 249.6 ft.² or less is 0.42074
Step-by-step explanation:
The manufacturer claims that mean amount of foil on each roll, μ = 250 ft²
The standard deviation of the measured amount of foil per roll, σ = 2 ft.²
The number of rolls tested by the restaurant, n = 10 rolls
The mean measured by the restaurant, = 249.6
Taking the sample means as individual score, we have;
The z-score, of the sample mean is given as follows;
At = 249.6, we have;
z = (249.6 - 250)/2 = -0.2
Therefore, the probability for a mean less than or equal to 249.6, we have;
The probability, P = P(z < -0.2) = 0.42074
The probability that the sample mean area is 249.6 ft.² or less given that the manufacturers claim is true, P = 0.42074.