Answer:
50-10=40
40/50=0.8
0.8=80%
10 dollars off of 50 dollars is 80%
Step-by-step explanation:
Answer:
Step-by-step explanation:
we have 18,000 people
growth 2% per year
time=11 years
18,000*2/100=360 growth per year
360*11=3,960.00
18,000+3,960=14,960
Answer:
x = 1 and x = 
Step-by-step explanation:
In this equation, a=5, b=-1, c=-4.
Plug these into the quadratic formula:
x =
and x = 
Now, simplify the equations:
x =
=
=
= 1
and
x =
=
=
= 
Answer:
10 years
Step-by-step explanation:
let they become of same height after t years
3ft=36 inches
hence
height of A
Ha=36+21t
8ft=96 inches
height of B
Hb = 96+15t
as Ha =Hb
36+21t =96+15t
21t-15t =96-36
6t=60
t=60/6
t= 10 years