physics

The temperature fell 4 degrees every hour. The total decline was 20 degrees. For how many hours was the temperature decreasing at this rate?

  1. 👍 0
  2. 👎 0
  3. 👁 87
  1. total=rate*time
    solve for time.

  2. -24

    1. 👍 0
    2. 👎 0
    posted by Sean

Respond to this Question

First Name

Your Response

Similar Questions

  1. calculas

    Suppose the temperature at 12:00 noon is increasing at an (instantaneous) rate of 3 degrees F. per hour. What is the rate of change of the temperature in degrees C. per hour. Hint: The relationship between degrees F. and degrees

    asked by Anonymous on April 29, 2010
  2. math

    The temperature outside was 3 degrees Fahrenheit at midnight. During the next hour the temperature fell 7 degrees. What was the temperature at 1 A.M. Can u explain to me how to do it please

    asked by micheal on January 12, 2015
  3. calculus

    Coroners estimate time of death using the rule of thumb that a body cools about 2 degrees F during the first hour after death and about 1 degree F for each additional hour. Assuming an air temperature of 70 degrees F and a living

    asked by Anonymous on November 29, 2010
  4. math

    the temperature on a cold december morning fell from 37 degrees to -4 degrees. how many degrees did the temperature fall? Please explain answer

    asked by Anonymous on November 27, 2012
  5. calculus

    Coroners estimate time of death using the rule of thumb that a body cools about 2 degrees F during the first hour after death and about 1 degree F for each additional hour. Assuming an air temperature of 78 degrees F and a living

    asked by bob on November 18, 2010
  6. math

    The temperature at 1:00 p.m. was 88 degrees farenheight. This was 12degrees warmer then at 8:00 a.m. Earlier on the same day, the temperature fell 7 degrees farenheight from midnight to 4:00 a.m. Then it rose 6 degrees farenheight

    asked by cassandra on May 1, 2011
  7. math

    In a science experiment, the temperature fell 63 degrees Fahrenheit in 9 minutes. If the temperature fell at the same rate every minute, how many degrees did it change each minute? 63 divide by 9 = 7

    asked by MJ on September 9, 2015
  8. calculus

    1 pt) Coroners estimate time of death using the rule of thumb that a body cools about 2 degrees F during the first hour after death and about 1 degree F for each additional hour. Assuming an air temperature of 68 degrees F and a

    asked by emily on April 1, 2015
  9. algebra

    the temperature at Kent is -7 degrees and increasing at 2.5 degrees per hour. The temperatire at row is 19 degrees decreasing at 4 degrees per hour. When will they be the same? and what temperatore? let t = hours running time.

    asked by carl on November 30, 2006
  10. Math

    the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4

    asked by Maria on September 29, 2014

More Similar Questions