While walking from her house to school, Miriam walks at a pace of 5 km/h. When she walks in the hallways at school, she slows do
wn to 3 ½ km/h. If she spent 2 ½ hours walking to and from school and ¾ of an hour walking in the hallways, what was her average walking speed?
1 answer:
5* 2.5= 12.5, 3/4 of 3.5 is 2.625. add those to get 15.125. divide by the hours(3.25) and the answer is- 4.65 km/hr
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