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James S.

asked • 09/27/16

story problem trouble

For this story problem, I could solve part a, but not part b. Help please? Thanks!
 
 
In 1870 the average ground temperature in Paris was 11.8°C. Since then it has risen at a nearly constant rate, reaching 13.5°C in 1969.
(a) Express the temperature T (in °C) in terms of time t (in years), where t = 0 corresponds to the year 1870 and 0 ≤ t ≤ 99. (Give your answer in slope-intercept form.)

T=17t/990   +11.8


(b) During what year was the average ground temperature 12.4°C? (Round your answer down to the nearest year.)
????

1 Expert Answer

By:

Kenneth S. answered • 09/27/16

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4.8 (62)

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