-8/2. eight and two thirds times 30 is 260, and seven percent of 270 is 91/5, and subtracted by 10 is -8.2
We know that the volume of a sphere is:
V
=
4
3
π
r
3
where
r
=
10
2
=
5
ft
is the radius;
we need half of this, so we use:
V
2
=
2
3
π
r
3
=
261.8
ft
3
giving a total weight of water of:
W
=
261.8
⋅
62.4
=
16
,
336
pounds
Sum is addition, less than is subtraction, equals is is, division is of and multiplication is per
