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Zielflug [23.3K]
3 years ago
5

The temperature in the ice rink must stay below 50°F this morning the temperature was 71 Degrees Fahrenheit the icing runs a coo

ling device that can decrease the temperature by 3.5° every hour how many hours will it take for the temperature to fall below 50°
Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

Answer:

The temperature needs to decrease 71° - 50° = 21° that at least not greater than 50°F

As we know, the device decrease the temperature down 3.5° every hour, so

21 : 3.5 = 6 hour

Call x is the hours we need to wait to let the device decrease, we have

x > 6

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out of 8000 students of Chitwan district 10% take tuition in various subject before the SLC examination. Among them 40% take tui
nasty-shy [4]

Answer:

Out of 8000 students, 10% take tuition in various subjects before the exam.

10% of 8000 is:

10/100 * 8000 = 800

Among the 800, 40% take tuition in English only and 20% take tuition in Math only.

80 students take tuition in other subjects, therefore, in percentage:

80/800 * 100 = 10%

Therefore, the percentage of students that take tuition in both Math and English is:

100% - (40% + 20% + 10%) = 100% - 70% = 30%

30% of the 800 students take tuition in both subjects. That is:

30/100 * 800 = 240 students

Therefore, among the 8000 students in the district, only 240 take tuition in both English and Math.

In percentage:

240/8000 * 100 = 3%

3% of students take tuition in both English and Math.

In Ratio:

3 : 100

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3 years ago
√50 as a mixed radical!
Hoochie [10]

Answer:

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4 years ago
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I hope this helps.
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