Answer:-3
Step-by-step explanation:
know
a+b=1
a-b=2
by combine the equatio you will get 2a+b-b=3
the b cancal each other out left 2a=3 and 3/2 = 1.5 for a
so if 1.5=a then apply 1.5 into a+b=1 and a-b=2 you will receive -.5 for b and 1.5/-.5 will equal to -3
Answer:
i think B is good
Step-by-step explanation:
Answer:
13/12 hr long , the second play last.
Step-by-step explanation:
Total Evening time = 5/2 hrs
Intermission time = 1/6 hr
One Play time = 5/4 hr
Second Play time = Total Evening time - One play time - Intermission Time
=> Second Play time = 5/2 - 5/4 - 1/6
=> Second Play time = (1/12) ( 30 - 15 - 2) = 13/12 hr
the second play last for 13/12 Hrs = 1 hr 5 minutes
is a proper fraction, when , so the correct answer is B.