Answer:
6 dresses
Step-by-step explanation:
Given: sales price is $d
Regular price is 3 times of sales price
Janine has money to buy 2 dresses at regular price.
Now, finding the number of dresses Janine can buy at the sales price, if sale price is d
Regular price=
Janine has total money= (∵ regular price is 3d)
∴ Number of dresses bought by Janine=
⇒ Number of dresses bought by Janine=
∴ Number of dresses bought by Janine is 6.
Answer: 0.0918, it is not unusual.
Step-by-step explanation:
Given : The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.54 minutes and a standard deviation of 1.91.
i.e. minutes and minutes
Let x denotes the length of time a person takes to decide which shoes to purchase.
Formula :
Then, the probability that a randomly selected individual will take less than 6 minutes to select a shoe purchase will be :-
Thus , the required probability = 0.0918
Since, P-value (0.0918) >0.05 , it means this outcome is not unusual.
[Note : When a outcome is unusual then the probability of its happening is less than or equal to 0.05. ]
Answer:
Step-by-step explanation:
I am going to assume your question meant the equation
So can be found by substituting all the x terms in the equation with -1
And simplifying for our answer
Answer:
x = 17
Step-by-step explanation:
x + x + 8 = 42 because x = boys and x + 8 = girls
2x = 34 because 2x = 42 - 8
x = 17
i hope this helps! you don't need the 2x = 42 - 8 to be an equation ;)