Answer: He planted 159 acres of cotton
Step-by-step explanation: divide 265 by 20 then multiply that number by 12 for the answer. if you wanna double check me but this is right.
Let a = weight of large box in pounds
Let b = weight of small box in pounds
(1) 65a + 70b=4000
(2) a+b=60
Now we can simultaneously solve these equations.
a = 60 - b. Hence 65(60 - b) + 70b = 4000 So 3900 + 5b = 4000 and 100 = 5b hence b = 20.
SImilarly a = 40. Now we can verify too by putting in the calculated values.
She has no more white ribbon because she exchanged it for yellow.
