Answer:
GCF: 4
Step-by-step explanation:
The factors of 12 are: 1, 2, 3, 4, 6, 12
The factors of 20 are: 1, 2, 4, 5, 10, 20
Then the greatest common factor is 4.
Answer:
Use the scores in the box. What is the range?
a list of test scores
25
24
17
13
Step-by-step explanation:
Hi there!
Here we go:
-5 + a = -10
Add 5 to each side of the equation
a = -5
There you go! I really hope this helped, if there's anything just let me know! :)
Answer:
1 and 3 are biased
Step-by-step explanation:
A biased sample is ond where all individuals were not given equal likelihood of being selected.
Number 1;
Picking students from the cafeteria would lead to sampling bias because not every student from the school eats from the cafeteria. Those she selected can not be used to account for the whole school. Those that use the cafeteria are only a representation of the whole school and not the entire school.
For number 3:
Paul is interested in finding the mean number of cloth shoppers In a mall and is only collecting data from one clothing store without considering other stores in the mall.
Answer:
8x-7
Step-by-step explanation:
5(x-2)+X=6(x+3)-4x
You would need to use the distributive property first to distribute 5 and 6.
5x-10 + X= 6x+3-4x
You would then need to combine like variables.
5x+x+6x-4x=8x
-10+3=-7
Then you would just recreate the expression.
8x-7
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