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If the total income of farm X in 2004 was t dollars, and the
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11 Jun 2018, 08:35
11 Jun 2018, 08:35
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If the total income of farm X in 2004 was t dollars, and the average (arithmetic mean) of the incomes from corn, lettuce, and tomatoes at farm X in 2004 was v dollars, then which of the following equations correctly gives v in terms of t ?
A. v = 0.03t
B. v = 0.056t
C. v = 0.07t
D. v = 0.168t
E. v = 0.2t
Re: If the total income of farm X in 2004 was t dollars, and the
[#permalink]
11 Jun 2018, 10:48
11 Jun 2018, 10:48
Carcass wrote:
Attachment:
income.jpg
If the total income of farm X in 2004 was t dollars, and the average (arithmetic mean) of the incomes from corn, lettuce, and tomatoes at farm X in 2004 was v dollars, then which of the following equations correctly gives v in terms of t ?
A. v = 0.03t
B. v = 0.056t
C. v = 0.07t
D. v = 0.168t
E. v = 0.2t
Answer explanation please.
Re: If the total income of farm X in 2004 was t dollars, and the
[#permalink]
11 Jun 2018, 13:01
11 Jun 2018, 13:01
Expert Reply
From the first pie, you do know that vegetables are 28% of the total income. Or 0.28t $
From the second pie, you do know that the 3 categories (corn, lettuce, tomatoes) account for 60%.
0.28t of 60 = 0.168 t $
The average is \(\frac{0.168}{3}\) = 0.056 t $
B is the answer
From the second pie, you do know that the 3 categories (corn, lettuce, tomatoes) account for 60%.
0.28t of 60 = 0.168 t $
The average is \(\frac{0.168}{3}\) = 0.056 t $
B is the answer
