perform the following calculation and report the answer with the correct nimber of significant figures and proper units

Question

(96.37m-90.21m)/ 1.320 hour

Answer 1

( 96.37m-90.21m ) = 6.16 m

1. for subtraction, the correct significant number of digits is the number with the least digits away from the decimal place. In this case, both values have 2 digits to the right of the decimal place, so there should be two digits to the right of the decimal place after conducting the calculation (Note: keep all values in front (to the left) of the decimal place)

6.16m /1.320 hr = 4.666667 m/hr

1. the correct number of significant digits when looking at multiplication or division is always the same as the value with the least number of significant digits. in this case, we can see that 6.16 has 3 sig figs, while 1.320 has 4. this means that the final answer should have 3 sig figs.

the answer is 4.67 m/hr