SOLUTION: david drove a total of 300km. he drove during equal periodss of time , 80km/h , 90km/h and 100km/h . how much time did he spend driving at 90km/h ? the answer should be approximatl

Question 499812: david drove a total of 300km. he drove during equal periodss of time , 80km/h , 90km/h and 100km/h . how much time did he spend driving at 90km/h ? the answer should be approximatly 1 1/9.
please get back to me as soon as possible and tell me how you got to your answer.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the equal periods of time during which
he drove at 3 different speeds
given:

He drove 90 km/hr for 1 1/9 hr
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