answer:
B -2
Step-by-step explanation:
equation is x-6=5x+2 and you some it like you would for a regular linear expression
It's basically multiplication by 3. 3x3 9x3 27x3 etc
Answer:
The experimental probability that the next child to enroll will be a preschooler is 40%
P(E) = 40%
Step-by-step explanation:
What is Experimental Probability?
Experimental probability is basically the ratio of the number of outcomes occurred to the total number of trials in an actual experiment.
In this problem we are given that out of the last 10 children to enroll at the day care center, there are 4 children who belong to the category of preschoolers.
We are asked to find the experimental probability that the next child to enroll will be a preschooler.
The required experimental probability is given by

Where number of desired outcomes are 4 and total number of outcomes are 10
So the probability is

Therefore, the experimental probability that the next child to enroll will be a preschooler is 40%
Cost of the spa treatment = $42
Percentage of sales tax = 6%
Percentage of tips = 20%
Normally the tips amount is calculated before adding sales tax.
Then
Amount of tips given = (20/100) * 42
= (1/5) * 42
= 8.40 dollars
Amount of sales tax taken = (6/100) * 42
= 252/100
= 2.52 dollars
Then
The total amount spent for spa treatment = (42 + 8.40 + 2.52) dollars
= 52.92 dollars
So we can see that $52.92 has been spent in total for spa treatment and this amount includes a sales tax of $2.52 and a tip of $8.40.