A young person grows from 7 pounds to 140 pounds in 18 years. How many ounces per hour is this growth rate? Round your answer tot he nearest ten-thousand of an

Question

Please show all work and step by step 

Answer 1

A year is 365.25 days.  That is why we add a day to the calendar

every 4 years.

 

(365.25 days/yr)(24 hrs/day) = 8,766 hrs/yr

 

18(8766) = 157,788 hours in 18 years

 

140-7 = 133 pound gained

(133 pounds)(16 oz/pound) = 2128 oz gained

 

ounces per hour = oz/hr = 2128/157788 = 0.01348645

 

To the nearest ten thousandth:  0.0135 oz/hr