Aland developer is dividing 20 acres of land into 2 5 of an acre lots. if each lot is sold for $15,000, what is the total value of the 20 acres?

The total value of the 20 acre land  is:

                        $ 750,000

The total area of the land is: 20 acres.

Also, the land is divided into 2/5 of an acre lot.

This means that the total number of lot that can be obtained is:

 Total area/Area of 1 lot

i.e.

Number of lot= 20/(2/5)

i.e.

Number of lots= 50

Also, cost of 1 lot = $ 15,000

This means that the cost of 50 lots will be: $ (15,000×50)

i.e.

cost of 50 lots= $ 750,000

Hence, cost of total land=cost of 50 lots

i.e.

Total cost of 20-acre land=  $ 750,000

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!