Janice's Rectangular Garden
ch
x = 8; width = 12 ft; length = 20 ft
240 =
• 12
20 ft
240 = 240
20- x ft
The other way to verify it is just multiply
out the length and width of the rectangle.
. 20
16
240 =
A=Iw
240 = 240
240 = 20(20-x)
How much fencing does Janice need?
240 = 20(20 -
P=
+ 2w
P=2(20) +2(12)
= 40 +24
3
= 64 ft
Janice needs to go and buy
feet of fencing.
Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500