Ballvolume-corevolume=polyutheanevolume
volumesphere=(4/3)pir³
diameter/2=radius
ballradius=9/2=4.5
coreradius=6/2=3
ballvolume-corevolume=
(4/3)pi4.5³-(4/3)pi3³=
(4/3)(pi)(4.5³-3³)=
(4/3)(pi)(91.125-27)=
(4/3)(pi)(64.125)=
268.47 cubic inches
yah, it is 268.47 cubic inches
<h3>
Answer: 20 lawns</h3>
Work Shown:
8 lawns = 2 hours
4 lawns = 1 hour (divide both sides by 2)
20 lawns = 5 hours (multiply both sides by 5)
Answer:
1)2500
2) 1500
3)2.5%
Step-by-step explanation:
1) the standard formula for interest is i=prt where i= interest, p= principal and t=time
In the first scenario, everything but the principal is given so lets substitute the info into the equation:
75=p*0.03*1
75= 0.03p
75/0.03=p
2500=p
Same thing for second scenario, just different numbers
120=0.04*2*p
120=0.08p
1500=p
This time everything but the rate is given:
250=10000*1*r
250=10000r
Divide both sides by 10000
0.025=r
2.5%=rate(convert into percentage)
Hope this helps!
Answer:
y equals to x plus 9
Step-by-step explanation:
-x+y=9
so, y=x+9
Answer:
$12,800
Step-by-step explanation:
42-18= 24
24 is the years the money is growing.
24/4=6
200x2x2x2x2x2x2=12,800
if it doubles every six years it would be 200x2x2x2x2=3,200
the difference is 9,600
