SOLUTION: Sally drove 7 hours to her aunts house at 90km/h. If it took her 9 hours to get home what was her speed on her way home?

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Question 1055076: Sally drove 7 hours to her aunts house at 90km/h. If it took her 9 hours to get home what was her speed on her way home?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
7hr*90kmph = 630km, distance to Aunt's home
630km/9h =70kmph, her speed on her way home