The Weight of a Jersey cattle increases roughly linearly with age. A typical Jersey cow weighs 150lbs at 3 months and 540lbs in 15 months. Write a leaner equation giving the weight of a jersey cow as a function of age. Predict the weight of a jersey cow in 20 months.
The answer is 897.5 i think but i dont really know how to do it.
2006-12-18 09:47:26 · 5 answers · asked by . 1 in Science & Mathematics ➔ Mathematics
Let the points be (age, weight): (3,150) and (15,450).
y-y1=m(x-x1)
y-150=[(450-150)/(15-3)](x-3)
y-150=25(x-3)
y=25x-75+150
y=25x+75
If x=20, y=25(20)+75 = 575
2006-12-18 10:35:34 · answer #1 · answered by fcas80 7 · 0⤊ 0⤋
Find the linear equation by finding the slope of equation,
540 - 150 / 15 - 3 , that is the rate of growth per month,
weight = rate times time + the birth weight
2006-12-18 09:56:02 · answer #2 · answered by Ray 5 · 0⤊ 0⤋
___150 over 3 then 540 over 15 then 900 over 20
older less weight gain
2006-12-18 09:52:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
No......... i dont wanna answer the question......... lol sorry!
2006-12-18 09:52:25 · answer #4 · answered by Stumbles 3 · 0⤊ 0⤋
fhfghhjffjkvgkjj
2006-12-18 09:49:42 · answer #5 · answered by dylan d 1 · 0⤊ 2⤋