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Zigmanuir [339]
3 years ago
11

a Farmer owns a 160-acre square wheat field with a diagonal length measures 3,733.5 feet. What is the side length of the wheat f

ield to the nearest foot? A. 1867 feet B. 1320 feet c 5,280 feet d. 2,640 ft.
Mathematics
1 answer:
Furkat [3]3 years ago
5 0

Answer:

d. 2,640 ft.

Step-by-step explanation:

As the field is square, the diagonal is at 45° to either side

a / 3733.45 = sin45

a = 3733.45sin45 = 2,639.9478... ≈ 2640 ft

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You just need to do 12 1/5 ÷ 1 4/5.
To do this, first convert both fractions to improper fractions or topheavy fractions.

12 1/5 -
15 × 5 is 60, 60 + 1 is 61 so 12 1/5 = 61/5

1 4/5 -
1 × 5 is 5 and 5 + 4 is 9. 1 4/5 = 9/5

To divide fractions, you do keep, chang, flip (keep the 1st fraction, change the ÷ to ×, and flip the 2nd fraction)

the question starts as 61/5 ÷ 9/5 and becomes 61/5 × 5/9

multiplication in fractions is literally just numerator × numerator / denominator × denominator.

61 × 5 is 305. 5 × 9 is 45. the fraction is 305/45.

however, we need a whole number. 305/45 converted into a decimal is 6.7777778 (6.7 recurring). obviously you can't put a fraction of a book onto a shelt, so you round it down to the nearest whole number, which is 6.

final answer: 6
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Step-by-step explanation:

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Step-by-step explanation:

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