Answer:
The definition of a z-score is:
z = (X - μ)/σ where X is our given score (33), μ is the distribution's mean (40) and σ is the distribution's standard deviation (9).
To calculate the z-score for 33, plug the numbers in:
z = (33 - 40)/9 = -7/9 = -.78
Hope this helps!
Step-by-step explanation:
Answer:
Step-by-step explanation:
m = 5 + 10d
The variable "d" is the independent variable because its value does not depend on another variable. The variable "m" is the dependent variable because its value depends on the value of the variable "d"
Answer:
s = 4
......................................
I am pretty sure that this is it
Answer: Jamal can purchase 5 sour straws.
Step-by-step explanation:
Let x represent the number of sour straws that Jamal can purchase.
He buys nachos for $7.50, and he wants to purchase some sour straws for $1.50 each. This means that the total amount that he would pay if he purchased x sour straws is
1.5x + 7.5
Jamal has $15.00 to spend at the concessions stand. This means that the number of sour straws that Jamal can purchase with the money that he has is
1.5x + 7.5 = 15
1.5x = 15 - 7.5
1.5x = 7.5
x = 7.5/1.5
x = 5
