So if 199.75 is the cost after a 18% discount
The original price is 100%
Then the price after a 18% discount is
Tell me as a percentage
Answer:
7 and 8
Step-by-step explanation:
<u>Step 1: Find the square root of 52</u>
→ 



It lies between 7 and 8 because it is greater than just 7 and less than the number 8.
Answer: 7 and 8
There are two solutions for this problem. It depends if order matters or not. As asked in the problem, we have to show both solutions.
The first solution is for the condition that order does not matter. This is a combination problem:
nCr = n!/r!(n-r)!
where n=10 because there are 10 total students, and r=2 because you choose 2 students at a time
nCr = 10!/2!(10-2)! = 45 ways
The second solution is for the condition that order matters. This is a permutation problem.
nPr = n!/(n-r)! = 10!/(10-2)! = 90 ways
Answer:
Part 1) 
Part 2) 
Part 3) 
Step-by-step explanation:
<u><em>The question in English is</em></u>
Expressed in algebraic language.
Symbolically write the following expressions:
Three times a number:
Four times a number:
Two-thirds of a number
Let
n ----> the number
Part 1) we have
Three times a number:
we know that
The algebraic expression is equal to multiply 3 by the number n
so

Part 2) we have
Four times a number:
we know that
The algebraic expression is equal to multiply 4 by the number n
so

Part 3) we have
Two-thirds of a number
we know that
The algebraic expression is equal to multiply the fraction 2/3 by the number n
so
