here i don't know if this can help you but hey i tried.
999/2=499.5
50% is equivilent to half so if you divide 999 by 2 you get 499.5
The difference between a number divided by 3 and 4 is 20.
- = 20
multiply by 12
4n - 3n = 12(20)
n = 240 is the number
and,
Aubrey has $120 to spend on a tennis racket and lessons.
The racket costs $45 and the lessons cost $15/hr.
How many hours of lessons can she afford?
hrs =
hrs = 5 hrs
Volume
cube and sphere
the diameter of the sphere=height of box=legnth of box=width of box
volume of cube=side^3
volume of sphere=(4/3)pir^3
side=d=2r
Vcube=d^3
vsphere=(4/3)pi(d/2)^3
Vsphere=(pid^3)/6
percent
basketballV/boxV=( (pid^3)/6)/(d^3)=(pid^3)/(6d^3)=pi/3=aprox 0.523599=52.3599% (round if nececary)
I = PRT
21 = 200 * 0.035 * T
21 = 7T
3 years = T