Answer:
P: the principal, the amount invested
A: the new balance
t: the time
r: the rate, (in decimal form)
Step-by-step explanation:
Ex1: If $1000 is invested now with simple interest of 8% per year. Find the new amount after two years.
P = $1000, t = 2 years, r = 0.08.
A = 1000(1+0.08(2)) = 1000(1.16) = 1160
9x=5x+ (9=x)
(combine like terms)
9x=6x+9
(get the x value alone on one side of the equation, in this case by subtracting 6x from both sides)
3x=9
(divide by 3 on both sides to get x alone)
x=3
Answer:
It can record 198 mintues on extra-long play
Step-by-step explanation:
The full battery(100%) of the videotape is:
2 hours(120 minutes) on short play
4 hours(240 minutes) on long play
6 hours(360 minutes) on extra long play.
32 minutes on short play
It used 32/120 = 0.2667 of the battery
44 minutes on long play
it used 44/240 = 0.1833 of the battery
Battery used:
0.2667 + 0.1833 = 0.45
Battery remaining
1 - 0.45 = 0.55
Out of 6 hours(360) on long play
0.55*360 = 198
It can record 198 mintues on extra-long play
Answer:
GOD BLESS YOU
Step-by-step explanation:
