Answer:
2x - 0.4x ;
8x/5 ;
Yes
Step-by-step explanation:
Let number of miles = x
Arlene:
Double number of miles = 2 * x = 2x
Subtract 20% of the result :
2x - 20% of 2x ;
2x - 0.4x
Raul:
Divides Number of miles by 5 ; x / 5
Multiplies result by 8 ;
8 * (x/5) = 8x /5
To know if expressions are equivalent :
Let x = 10 miles
Using Arlene's expression:
2x - 0.4x
x = 10
2(10) - 0.4(10) = 16
Using Raul's expression :
8x / 5
(8*10) / 5
80/5
= 16
Since they give the same result, we can conclude that the expression are equivalent
Answer:
c. There is no difference in the length between male and female babies
Step-by-step explanation:
When a confidence interval contains a zero, then there is no statistically significant different between the two group means because this means that there is a zero in the difference between the groups and a zero in the difference means there is no difference.
Answer:
They seem correct!
Step-by-step explanation:
A) Change in profit for each owner = -780/8
B) Change in profit for each owner = -$130
The total loss = $780
Number of owners = 6
The 6 owners must share the loss equally
The change in profit for each owner will be the original profit less 780/6
That is -780/6
Evaluating -780/6
Change in profit for each owner = -$130
Learn more here: brainly.com/question/17858380
Answer:
1 x 10^9
Step-by-step explanation:
