You need to find the interest earned first
I=PRT
I=1400*0.055*0.5
I=$38.50
Now add the principle and the interest
$1400+$38.50
$1438.50
Length (L): L
width (w): 1/2L + 3
Area (A) = L x w
308 = (L)(1/2L + 3)
308 = (1/2)L² + 3L
616 = L² + 6L
0 = L² + 6L - 616
0 = (L - 22)(L + 28)
0 = (L - 22) 0 = (L + 28)
L = 22 L = -28
Since length cannot be negative, disregard the -28
L = 22
width (w): 1/2L + 3 = 1/2(22) + 3 = 11 + 3 = 14
Answer: width = 14 meters, length = 22 meters
Answer:
Step-by-step explanation:
c=12.75n+12
c=15.75n
=4