Answer:
By a quick online search, i found two tape diagrams:
13) You: -
Friend: - -
So you have one block, and your friend has two.
We know that you work for 3 hours, this means that your only block must represent 3 hours.
And all the blocks represent the same amount of time, then each one of the two blocks of your friend also represents 3 hours.
Then in total, he tutored for 3 hours + 3 hours = 6 hours.
14) You: -
Friend: - - - - -
In this case, you still have only one block, but now your friend has 5.
Using the same reasoning as above, we can conclude that each block represents 3 hours, and your friend has 5 of them, this means that he tutored for:
5*3 hours = 15 hours
Answer:
option ( c ) is correct !!
Step-by-step explanation:
Given equations :-
y = -6x + 9 ________ ( i )
y = -3x + 3 .....( ii )
Equating both i and ii
-6x + 9 = -3x + 3
-6x + 3x = 3-9
-3x = -6
x = -6/-3
x = 2
Also, y = -3x + 3
y = -3(2) + 3
y = -6 + 3
y = -3
So, ( x , y ) = ( 2 , -3 )
Using sampling concepts, it is found that this is an example of independent samples.
- For dependent samples, there is a paired measurement for one set of items.
- For independent samples, separate measurements are made on two different sets, that is, the value on one sample reveal no information about the values on the other sample.
In this problem, there are two samples, the sample composed of male workers and the one composed of female workers, and separate measurements are taken, hence, it is an independent sample.
A similar problem is given at brainly.com/question/23106151
