The temperature at noon is 75 Fahrenheit. The temperature drops 3 degrees every half hour. What is the temperature at 4 p.m.
2 answers:
75 - 3 every half hour so minus 6 every hour,
between noon and 4pm, there are 4 hours
4*6 = 24
75 - 24 = 51
Noon is 12 pm.
Temperature drops by 3° every 30 minutes.
There are 240 minutes in 4 hours.
So, in 4 hours or 240 minutes, the temperature dropped by 24°.
By 4 pm, the temperature is 51°F.
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