Question

If a dairyman has 300 pounds of milk testing 3% butterfat, how many pounds of skimmed milk (with no butterfat) must he remove to have milk testing 3.6% butterfat?

Answer 1

hhhheeeelllppppp!!!!

Answer 2

1.2?

Answer 3

lol can u show me the steps?

Answer 4

imho 18 pounds

Answer 5

i think its 1.8

Answer 6

hmm.ya 1.8
see 3% of 300=9
3.6% of 300=10.8
so if it has to increase skimmed milk must decrease by 10.8-9=1.8 pnds

Answer 7

i like your logic :D

Answer 8

No the answer is 50 lbs
If you only remove 1.8 then you are left with 298.2
298.2*.036 = 10.73 which is much higher than 9

since the amount of butterfat remains the same
300(.03) = (300-x)(.036)
9 = 10.8 -.036x
.036x = 1.8
x = 50

Answer 9

nicely done. have to note your solution.

Answer 10

thanks

another way of looking at it

9/300 = .03
so
9/x = .036 --> x=250

Answer 11

correct!