The perfect whole squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.
Less than 30 are:
<h2>1, 4, 9, 16, 25</h2>
This kind of problems requires to add the working velocities. The total velocity is the sum of the individual velocities.
Anita's velocity = 1 pool/8 hours
Chao's velocity = 1 pool/6 hours
Combined velocity 1/8 + 1/6 = (3 + 4)/24 = 7/24 pool/hour
Time = 1 pool / (7/24) pool/hour = 24/7 hour =3.43 hours
Answer: it think its A
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
15-2x=9
or,-2x=9-15
or, x=-6/-2
x=3
