9z+28 be cuz it's like terms
Answer:
105 seconds
Step-by-step explanation:
We can use the relation ...
distance = speed · time
to write equations for the distance each girl travels as a function of time t since Jillian started.
Jillian's distance = (6 ft/s)(t)
Samantha's distance = (7 ft/s)(t -15) . . . . Samantha starts 15 seconds after the clock starts running
These distances are the same when ...
6t = 7(t -15)
6t = 7t -105 . . . . eliminate parentheses
105 = t . . . . . . . . add 105-6t
Jillian had been walking 105 seconds when the two girls met.
A) -8.93 > -8.4 is false. There is no solution to it.
B) -0.7 > -6.12 is true. There are infinite solutions to it.
C) 7.1 > 7.24 is false. There is no solution to it.
D) -3.2 > 3.6 is true. There are infinite solutions to it.
Answer:
28
Step-by-step explanation:
