Answer:
210
Step-by-step explanation:
Answer:
75 seconds
Step-by-step explanation:
Here, we want to get her time 6 weeks ago.
We shall have an exponential model to link this all up
The exponential model would look like;
y = I(1 - r)^n
where y is the present time
I is the initial time she started with which we are calculating
r is the rate of change which is 2% = 2/100 = 0.02
n is the week number which is 6 in this case
So we have;
66 = I(1 - 0.02)^6
66 = I(0.98)^6
I = 66/0.8858
I = 74.5 seconds
This is approximately 75 seconds
Her time 6 weeks ago is 75 seconds
Answer:
0.049
4.9 % of probability
Step-by-step explanation:
The probability of having the disease is equal to 7%
The probability of testing positive, having the disease is equal to 70%
We are looking for the probability of testing positive.
For that, we need to multiply the probabilities to find the result
P = (0.07)*(0.7)
P = 0.049
P = 4.9%
ANSWER:
It is better to buy it now, that is, a few weeks after the first purchase since it is cheaper ($12.95 for a 6,35 kg bag)
STEP-BY-STEP EXPLANATION:
We must calculate the unit price in each case. We calculate the unit value by dividing the price by the quantity in kg, like this:
Saying that before the price was $ 2.08 per kilogram and later it is $ 2.04 per kg.
The best sale is $12.95 for a 6,35 kg bag
I think you should try A 32 and see what happens