Let assume x be the sale price
A clothing store advertises that it is having a 25% off sale.
The sale price with 25% discount is f(x) = sale price - 25% of sale price
f(x)= x - 0.25x = 0.75x
For one day only, the store advertises and additional savings of 10%.
The sale price with 10% discount is g(x) = sale price - 10% of sale price
g(x)= x - 0.10x = 0.90x
Use composition function
g(f(x)) = g( 0.75x) = 0.90(0.75x) = 0.675x
That is 0.675/100 = 67.5%
The total percent discount = 100% - 67.5% = 32.5%
what would be the sale price of a $40 sweater?
Here sale price x= 40
So we plug in 40 for x
g(f(40)) = g( 0.75(40)) = 0.90(0.75(40)) = 0.675(40) = 27
The sale price of sweater = $27
There are 198 boys in the introductory Chinese course
<h3>How to determine the number of boys?</h3>
The given parameters are
Total = 363
Ratio = Boys : Girls = 6 : 5
So, we have
Boys =6/(5 + 6) * total number of students
This gives
Boys = 6/11 * 363
Evaluate
Boys = 198
Hence, there are 198 boys in the introductory Chinese course
Read more about ratio a:
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Answer:
3/4 is less < than 5/6
Step-by-step explanation:
Answer:
The base of the number is 8
Answer:
(x - 12)(x² - 2)
Step-by-step explanation:
Given
x³ - 12x² - 2x + 24 ( factor the first/second and third/fourth terms )
= x²(x - 12) - 2(x - 12) ← factor out (x - 12) from each term
= (x - 12)(x² - 2)
