This scenario is mostly found during a store sale where they offer discounts.
Assuming: Original price = 90 ; discount rate = 25%
Discount value = Original price * discount rate
Discount value = 90 x 25% = 22.50
Since 25% is the discount, you only need to pay 75% of the original price.
Discounted Price = original price * (100-25)% = 90 x 75% = 67.50
Answer: 1-27 2-8 3-9 4-32
Step-by-step explanation:
Answer:
P(t) = 27000 * (1/9)^(t/4)
Step-by-step explanation:
This problem can me modelled with an exponencial formula:
P = Po * (1+r)^t
Where P is the final value, Po is the inicial value, r is the rate and t is the amount of time.
In this problem, we have that the inicial population/value is 27000, the rate is -8/9 (negative because the population decays), and the time t is in months, so as the rate is for every 4 months, we use the value (t/4) in the exponencial.
So, our function will be:
P(t) = 27000 * (1-8/9)^(t/4)
P(t) = 27000 * (1/9)^(t/4)
Answer:
50%
Step-by-step explanation:
6/12 students have taken fewer than 11 courses.
50% of students have taken fewer than 11 courses.
6/12=50/100