Answer:
To write this down as an algebraic expression you would simply need to multiply the two terms together.
So in this case it would be 8 multiples by x which is 8x
Step-by-step explanation:
1) Find out the variables in the Expression
2) Find the operation that is done to the variables
3) Apply the operation to those variables.
Answer:
0.13%
Step-by-step explanation:
Given that :
Mean = 76mph
Standard deviation = 7 mph
Percentage of cars traveling slower than 55mph
Obtain the Zscore :
X = 55mph
Zscore = (X - mean) / standard deviation
Zscore = (55 - 76) / 7
Zscore = - 3
P(Z < - 3)
From the z table :
P(Z < - 3) = 0.0013
Hence, percentage of cars traveling slower than 55mph is (0.0013 * 100%) = 0.13%
No she did the Division wrong because she got 5 1/2 for her multiplication it so she should recheck and try the multiplication over to get the answer right