Answer:
There were 10 flies originally
Step-by-step explanation:
Since we have an exponential growth, we will be having a constant percentage of increase and we can set up the increase at any day using the following equation;
V = I(1+r)^d
where V is the number of flies on a particular day
I is the initial number of flies
r is the constant increase in percentage
and d is the number of days.
So we have for the second day;
60 = I(1+r)^2 ••••••(i)
For the fourth day, we have;
360 = I(1+r)^4 ••••••••(ii)
divide equation ii by i; we have;
360/60 = (1+r)^4/(1+r)^2
6 = (1+r)^2
(√6)^2 = (1+r)^2
1 + r = √6
r = √6 - 1
So we can substitute the value of r in any of the equations to get I which is the initial number of flies
Let’s use equation 1
60 = I(1 + r)^2
60 = I(1 + √6 -1)^2
60 = I(√6)^2
60 = 6I
I = 60/6
I = 10 flies
Answer:
-16 and -1
Step-by-step explanation:
-16 *-1 = 16
-16+-1=-17
$880, $896, $914, $925, and $963
median = $914
mean = (896+925+880+963+914)/5 = 4578/5 = $915.6
$915.6 - $914 = $1.6
so mean is greater than median $1.6
answer is B. second choice
<span>The mean is $1.60 greater.</span>
62.5/100 and 0.625 are both equivalent.