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1.Hank bikes 5km/h slower than kelly. In the time that it takes hank to bike 42km, kelly can bike 57km. How fast does each travel?

2.The average 150-lb adult burns about 360 calories walking 4 mi. Have far should the average 150-lb adult walk in order to burn the 20 calories?

3.A sample of 184 light bulbs contained 6 defective lightbulbs. How many defective light bulbs would you expect in a sample of 1288 bulbs?

question number 3 is 42 lightbulbs
question 2 is a little under 2/10ths of a mile like .18 miles
Answer 1:
at 3 hours mark Hank will reach 42km
as Hank bikes at 14km/h and Kelly bikes at 19km/h

Answer 2:
0.2222mi

Answer 3:
42
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