Given Situation: What is the percent increase from the 20 students to the 30 students.
Solution:
=> Let’s find how many percent did it increase.
Let’s have 20 as the first total number of the students in the first counts.
=> Then it became 30 students, let’s find out how many students added.
=> 30 – 20 = 10, there are 10 students added
10 is 50% of 20, thus, 50% added to the number of students. And that makes it 30 as the total count.
Answer:
Step-by-step explanation:
The Thomas Supply Company Inc. is a distributor of gas-powered generators. As with any business, the length of time customers take to pay their invoices is important. Listed below, arranged from smallest to largest, is the time, in days, for a sample of The Thomas Supply Company Inc. invoices.
13 13 13 20 26 27 30 32 34 34 35 35 36 37 38
41 41 41 42 44 47 47 48 50 54 55 56 62 67 82
Click here for the Excel Data File
(Round your answers to 2 decimal places.)
Determine the first and third quartiles.
Determine the second decile and the eighth decile.
Determine the 67th percentile.
The sales tax rate is 5%.
Step-by-step explanation:
Given,
Sales tax for an item = $24.50
Cost of item before tax = $490
Sales tax rate = 

The sales tax rate is 5%.
Keywords: sales tax, percentage
Learn more about percentages at:
#LearnwithBrainly
This would be a 4/5 ratio