29-3=6
1 t-shirt =6
6 x 3= 18
23-18= 5
answer =5
Answer:
66
Step-by-step explanation:
30+25+5+6 = 66.
There are 66 students in the class.
Answer:
84.13% of bottles will have volume greater than 994 mL
Step-by-step explanation:
Mean volume = u = 1000
Standard deviation = = 6
We need to find the proportion of bottles with volume greater than 994. So our test value is 994. i.e.
x = 994
Since the data is normally distributed we will use the concept of z-score to find the required proportion. First we convert 994 to its equivalent z-score, then using the z-table we will find the corresponding value of proportion. The formula to calculate the z score is:
Substituting the values, we get:
This means 994 is equivalent to a z score of -1. Now we will find the proportion of z values which are greater than -1 from the z table.
i.e. P(z > -1)
From the z-table this value comes out to be:
P(z >- 1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413
Since, 994 is equivalent to a z score of -1, we can write that proportion of values which will be greater than 994 would be:
P( X > 994 ) = P( z > -1 ) = 0.8413 = 84.13%
Answer:
Divide both sides by 3
Step-by-step explanation:
Divide both sides by 3 to isolate x.
x = 81
Answer:
The expression is;
Number of books = length of box/thickness of book
= 81/2/9 = 81 books
Step-by-step explanation:
Here, we want to determine the number of books that will fit into a box given the length of the book and the box.
The expression that can be used to get the number of books will be;
Number of books = length of box/thickness of book
= 18 divided by 2/9
= 18 * 9/2 = 81 books