Answer:
1/10 + 1/2 = 1/10 + <em><u>5/10</u></em> = <em><u>6/10</u></em>
Answer:
A It cannot be determined from the information given.
Step-by-step explanation:
By definition of absolute value, if
, then
, so

On the other hand, if
, then
, and

Answer:
1.4 hours
Step-by-step explanation:
Runner A:
Speed = 8.1 mph
Time, = t
Runner B :
Speed = 6.3 mph
Time, = t
Distance apart = 20.16 miles
Distance = speed * time
Distance of Runner A + Distance of runner B = distance apart
8.1t + 6.3t = 20.16
14.4t = 20.16
t = 20.16 / 14.4
t = 1.4 hours
Number of hours, t = 1.4 hours