18) If Holstein cows produce milk that is on average 3.66% butterfat and Jersey
1 answer:
Answer:
Step-by-step explanation:
- Milk of Holstein cows ⇒ 3.66% butterfat
- Milk of Jersey cows ⇒ 4.5% butterfat
<u>If we add x gal of 4.5% milk, then we have below equation:</u>
- 100*0.0366 + x*0.045 = (100 + x)*0.04
- 3.66 + 0.045x = 0.04x + 4
- 0.045x - 0.04x = 4 - 3.66
- 0.005x = 0.34
- x = 0.34/0.005
- x = 68 gal
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