The result is $15,625
The full price represents 100%. A local college bookstore spent $12,500, which equates to 80% of the full price as this reflects a 20% discount (100% - 20% = 80%).
Now, let’s set up a proportion.
If $12,500 corresponds to 80% of the full price, what is the full price (100%):
$12,500: 80% = x: 100 %
x = $12,500 · 100% ÷ 80% = $15,625
The correct choice is c because her earnings total $240.
In the absence of a specific question posed, below are the potential inquiries along with their respective answers:
P(fewer than 4 tosses)
= P(one toss) + P(two tosses) + P(three tosses)
= (3/4) + (3/4)(1/4) + (3/4)(1/4)^2
= 0.984375
Expected value
= 1 / p
= 1 / (3/4)
= 4 / 3
Variance
= (1 - p) / p^2
= (1 - (3/4)) / (3/4)^2
= (1/4) / (9/16)
= 4 / 9
Standard deviation
= sqrt(Variance)
= sqrt(4 / 9)
= 2 / 3
x²-9x+12 = (x - (9/2))² - (33/4) For further details, refer to the image below.:)
