No, if you do something to one side you do to the other. So 3 times 4 is 12 and 5 times 4 is not 15. I hope that makes sense
The answer is A.
B is incorrect because she selected 3 from each state, not 150 all from one state.
C is incorrect because random sampling is good. It helps eliminate group biases in polling. C suggests that random sampling is a bad thing.
D is incorrect becasue once again, she selected 3 from each state, not 150 from one state.
Answer:
Step-by-step explanation:
20%
Answer:
The numbers are
5.5 and 9.5,
Step-by-step explanation:
If the numbers are x and y:
x + y = 15
x - y = 4
If we add these 2 equations we eliminate y, so
2x = 19
x = 19/2 = 9.5.
Substituting in the first equation for x:
9. 5 + y = 15
y = 15 - 9.5 = 5.5
I think it would be 11.16 mph