If it takes 8 men 10 hours to build a wall, how long would it take 4 men?

20

Step-by-step explanation:

8/2=4

The workers were split in half, so the hours would go up:

10*2=20

I hope you understand what I mean...

                                                     :)

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!