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01 Jan 2025, 01:30
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B
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Difficulty:
15%
(low)
Question Stats:
86% (01:47) correct
14%
(02:11)
wrong
based on 152
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History
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Not Attempted Yet
The relationship between Fahrenheit and Celsius temperature scales can be expressed by the following formula: \(F=\frac{9}{5}C+32\) where F equals the temperature in degrees Fahrenheit and C equals the temperature in degrees Celsius. If the high and low temperatures last Tuesday were 82 degrees Fahrenheit and 64 degrees Fahrenheit, what was the difference between the high and low temperatures last Tuesday in degrees Celsius?
A. \(7\frac{7}{9}\)
B. 10
C. \(39\frac{7}{9}\)
D. 42
E. \(64\frac{2}{5}\)
A. \(7\frac{7}{9}\)
B. 10
C. \(39\frac{7}{9}\)
D. 42
E. \(64\frac{2}{5}\)
01 Jan 2025, 02:22
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High temperature last week:
(9/5)*C + 32 = 82
=> (9/5)*C = 50
C(high) = 250/9
Low temperature last week:
(9/5)*C + 32 = 64
=> (9/5)*C = 32
=> C(low) = 160/9
C(high) - C(low) = (250-160)/9 = 90/9=10
IMO,B
(9/5)*C + 32 = 82
=> (9/5)*C = 50
C(high) = 250/9
Low temperature last week:
(9/5)*C + 32 = 64
=> (9/5)*C = 32
=> C(low) = 160/9
C(high) - C(low) = (250-160)/9 = 90/9=10
IMO,B
01 Jan 2025, 02:42
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Bunuel
\(C = (F - 32)*5/9\)
\(C_h = (F_h - 32)*5/9\)
\(C_l = (F_l - 32)*5/9\)
\(C_h - C_l = (F_h - F_l)*5/9\)
(82 - 64)*5/9
5*2
10
IMO: B
