A father walks 36 miles in 12 hours, while his son covers the same distance on a bicycle at twice the father's rate of speed. At this rate; how many miles would the bicycle rider travel in 9 hours?
Make a Selection:
A. 52.5 miles
B. 49.5 miles
C. 54 miles
D. 48 miles

C. 54 miles

Step-by-step explanation:

The father walks 36 miles in 12 hours meaning that he walks 3 miles in one hour or 3 mph.

If the son goes twice as fast as the father then he is going at a rate of 6 mph.

So in 9 hours the son will have gone 9 hours x 6 mph = 54 miles

step-by-step explanation:

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg