Question 1084718
<font color="black" face="times" size="4">Let r = rate (or speed) of the car in miles per hour.


distance = rate*time
d = r*t
r = d/t


The equation we'll use is r = d/t. Plug in the distance of d = 1/2 = 0.5 miles and t = 1/120 = 0.00833333333333 (approximate) hours to get


r = d/t
r = 0.5/0.00833333333333
r = 60.000000000024
which rounds to 60


If we use fractions instead of decimal approximations, we land on r = 60 exactly without any rounding errors.


The car's speed is 60 mph.


Is the car speeding? Well that depends on the posted speed limit. That information isn't given in the problem, so it's impossible to say if the car is speeding or not.</font>