Step-by-step explanation:
Length = L
Width = W
L=8 more than 2W
L = 8 * 2W
L = 16W
Perimeter = 96
perimeter is the lengths of all sides added together
so
2L + 2W = 96
we have
L = 16W
2L + 2W = 96
let's do substitution
put what L = into 2L + 2W = 96
so
2(16W) + 2W = 96
can you rearrange that to get w
put answer in comment
Answer:
x^2-5x-24
Step-by-step explanation:
72% of 25=18
25 there are
18 are good at math
7 aren't good at math
Answer: x= -2
Step-by-step explanation: use pemdas
10x + 8 = 3(x - 2) distribuite parenthesis
10x + 8 = 3x - 6
10x + 8 = 3x - 6 add like terms
7x +8= -6 add like terms
7x= -14 divide to get x alone
x= -2
Answer:
142 years 3 months
Step-by-step explanation:
Let us assume the investment is made using a simple interest
Given data
Principal p= $1200
Rate r= 7.5%= 7.5/100= 0.075
Final amount A= $14000
Time t=?
The Simple interest formula is expressed as
A= p(1+rt)
Substituting we can solve for t
14000= 1200(1+0.075t)
14000= 1200+90t
14000-1200=90t
12800= 90t
t= 12800/90t = 142.22 years
The time required to get a total amount, principal plus interest, of $14,000.00 from simple interest on a principal of $1,200.00 at an interest rate of 7.5% per year is 142.22 years (about 142 years 3 months).
