16 men in 12 days can do 0.5work
1 man 1 day can do 0.5/(16x12) of a work
8days to do 0.5 of a work
1 man 8 days can do 8x0.5/(16x12) = 0.5x(1/24) of a work
... if you notice we need 24 men
... more detail
in8days, 0.5x(1/24) of a work need 1 man
in8days, 0.5 of a work need 0.5/(0.5x(1/24)) = 24 men
point is to find 'amount of work done per man per unit of time' then work out from that.
X^2 - x - 12
Hope this helps!
Answer:
y= 4x - 21
Step-by-step explanation:
1. 3-7 over 6-7 and you get -4 over -1 so your slope is 4
2. put it in point-slope and solve
3. you should get y = 4x - 21
I believe the first question is 4 feet / 1 second and the second answer is 16 oz / 1 lb
Answer: D
Step-by-step explanation: