Divide the total by the sections"
83 / 8 = 10.375
so the answer is B. More than 10 and less than 11
Answer:
We know that our sample is a group of 50 randomly selected students.
First, we want to know the name of the sampling technique.
There are a lot of sampling techniques, but knowing that the students are selected randomly, we can conclude that this is the simple random sampling technique, where each individual is chosen entirely by chance (so all the students have the same probability of being chosen)
Now we want to know if the method is biased or not,
Always that we use the simple random sampling technique, we will have an unbiased sample.
Answer:
11 pieces
Step-by-step explanation:
19 1/4 ÷ 1 3/4
19 x 4 = 76 + 1 = 77
1 x 4 = 4 + 3 = 7
77/4 ÷ 7/4
77/4 ÷ 7/4 = 11/1
11 pieces
(Just copy my work above for Part B)
X=number of plates
y=number of cups
4x+5y=25.25
7x+3y=25.50
Add the two equations together:
11x+8y=50.75
11x=50.75-8y
x=
Plug x into the first equation:
4x+5y=25.25
4(
) = 25.25
= 25.25
= 25.25
203-32y = 277.75
-32y=74.75
32y=-74.45
y=2.34 (rounded to nearest hundredth)
The price of a plate is $2.34
Answer:
the answer is 40 boys
Step-by-step explanation:
Let's say there are x boys who play both cards and carrom.
We setup up an equation that involved all information given and x.
Boys who only play cards = 45-x
Boys who only play carrom = 20-x
Boys who play both = x
Add there together and you should get 60, which is the total number of students in the class.
(45-x)+(20-x)+x=60
65-x=60
x=5
Boys who only play cards=45-x=45–5=40
hope it helps you