A farmer can buy two types of plant food, mix 8 Each of contains 20 pounds of phosphoric acid 30 pounds of nitrogen, pounde potash Each cubic yard B contains 10 pounds of phosphoric 30 pounds of nitrogen 10 pounds of potash The minimum monthly requirements 420 pounds of phosphoric acid , 930 pounds of nitrogen 200 pounds of potash $30 yard and mix B yard, how many of each should the farmer to the minimum monthly requirements at a minimum cost? What is this cost?

i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,                                                                    

55/i dont know i do it for the points

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

answer:

125 yards

explanation:

75+50=125. that is my answer