Shelley's cup of tea cooled down 21 of a degree in 10 seconds. At what rate is her tea cooling down?Simplify your answer and write it as a proper fraction, mixed number, or whole number. _______degrees per second
Q. Shelley's cup of tea cooled down 21 of a degree in 10 seconds. At what rate is her tea cooling down?Simplify your answer and write it as a proper fraction, mixed number, or whole number. _______degrees per second
Given Information: We have:Temperature decrease = 21 degreeTime = 10 secondsWhich formula should we use to calculate the rate of cooling?Rate of cooling = Temperature decrease ÷ Time
Formula for Rate of Cooling: We have:Temperature decrease = 21 degreeTime = 10 secondsWhich expression should we use to calculate the rate of cooling?Rate of cooling = Temperature decrease ÷ TimeRate of cooling = (21)÷10
Expression for Rate of Cooling: Simplify (21)÷10.(21)÷10=(21)×(101)=(2×10)1=201The rate at which Shelley's cup of tea is cooling down is 201 of a degree per second.
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