Answer:
$204.98
Step-by-step explanation:
407(1+0.06)^7
611.98
611.98-407
204.98
So it made $204.98
Hope this helps
Answer:
Area= 64
Perimeter=32 ft
Step-by-step explanation:
Area equation is × =:
8ft * 8ft = 64
Perimeter equation is meaning that you add up the sides of the square to find its perimeter:
8ft+8ft+8ft+8ft= 32ft
-Hope that helped...
Let the money alleli initially had be x
Money after buying clothes = x-(1/2)x=(1/2)x
Money spent on shoes = (1/2)x × (1/3)x=(1/6)x
Remaining money = x minus( (1/2)x + (1/6)x)= (1/3)x
Also we know the remaining money is 1000
Therefore
(1/3)x = 1000
Multiplying 3 on both sides
X = 3×1000
X = 3000
The initial amount she had is 3000
Hope this is right!!
Answer:
A) a = 1050 and b = 0.81
B) 3.3
Step-by-step explanation:
Original price of the computer = $ 1050
Rate of decrease in price = r = 19%
This means, every year the price of the computer will be 19% lesser than the previous year. In other words we can say that after a year, the price of the computer will be 81% of the price of the previous year.
Part A)
The exponential model is:
Here, a indicates the original price of the computer i.e. the price at time t = 0. So for the given case the value of a will be 1050
b represents the multiplicative rate of change i.e. the percentage that would be multiplied to the price of previous year to get the new price. For this case b would be 81% or 0.81
So, a = 1050 and b = 0.81
The exponential model would be:
Part B)
We have to find after how many years, the worth of the computer will be reduced to half. This means we have the value of v which is 1050/2 = $ 525
Using the exponential model, we get:
Taking log of both sides:
Thus, after 3.3 years the worth of computer will be half of its original price.