Step-by-step explanation:
the perimeter is the sum of the 4 individual sides.
if the sides are doubled, so is the sum of them.
therefore, the new perimeter is then
12×2 = 24 cm
Answer:
73.3 years
Step-by-step explanation:
Use the Compound Amount formula:
A = P(1 + r/n)^(n*t)
Here A = 3P, r = 0.015, n = 12, and so we have:
3 = (1 + 0.015/12)^(12*t). Find t (in years)
3 = (1.00125)^(12*t)
Take the log of both sides. We get:
log 3 = (12*t)(log 1.00125), or 0.47712 = (12*t)(5.425*10^(-4)
0.47712
Solving this for t, we get t = --------------------------- = 73.3 years
(12)(5.425*10^(-4))
9514 1404 393
Answer:
2.5 times per hour, on average
{0:00, 0:24, 0:48, 1:12, 1:36} then repeating at 2:00
Step-by-step explanation:
The least common multiple of the intervals is ...
LCM(8, 12) = 8·12/GCD(8, 12) = 8·12/4 = 24
The two buses will stop at the same time every 24 minutes. That is 60/24 = 2.5 times per hour.
Starting with the 6:00 am stop, the next joint stop is at 6:24, then 6:48. In the next hour, the stops are at 7:12 and 7:36. This sequence of times repeats, starting at 8:00 am. That is, the cycle repeats every 2 hours.
Answer:
13 (Answer B)
Step-by-step explanation: