Area of the garden that 15 trees are planted will be:
Area=250×25=6250 ft²
but 1 acre= 43560 ft²
thus converting our area to acres we get:
6250/(43560)
=0.1435 acres
thus the population density will be:
(Population)/(area)
=15/0.1435
=104.544 trees/acre
Answer:
its 6 lbs ;)
Step-by-step explanation:
<span>n = 5
mean = 48
Let's create a series of equations to express "sum of deviations of a set of values x1 , x2 , x3 , .......... , xn , measured from 50 is -10"
(x1 - 50) + (x2 - 50) + ... + (xn - 50) = -10
(x1 + x2 + ... + xn) - 50n = -10
x1 + x2 + ... + xn = 50n - 10
And do the same for 46.
(x1 - 46) + (x2 - 46) + ... + (xn - 46) = 10
(x1 + x2 + ... + xn) - 46n = 10
x1 + x2 + ... + xn = 46n + 10
Both 50n - 10 and 46n + 10 is equal to the sum of x1, x2, ..., xn. So set them equal to each other and solve for n:
50n - 10 = 46n + 10
50n = 46n + 20
4n = 20
n = 5
Now we can calculate the sum of x1, x2, ..., xn:
50n - 10 = 50*5 - 10 = 250 - 10 = 240
And the mean
mean = 240/5 = 48</span>