What is the answer to this
2 answers:
You might be interested in
Answer:
40/9
Step-by-step explanation:
Use the work formula, +
=
, where A is the amount of time it takes one person, B is the amount of time it takes another person, and T is the time it takes for them to work together.
Plug in the times for David and Alex alone:
+
=
Find the least common denominator, which is 40.
+
=
=
Cross multiply and solve for T:
9T = 40
T = 40/9
So, if they worked together, it would take them 40/9 hours
Answer:
The volume of the composite figure is approximately 3567.198 cubic feet.
Step-by-step explanation:
The composite figure consists in the combination of a right cone and a cuboid. The volume of the composite (), in cubic feet, figure can be determined by this expression:
(1)
Where:
- Radius of the circle of the right cone, in feet.
- Height of the cone, in feet.
- Width of the cuboid, in feet.
- Height of the cuboid, in feet.
- Length of the cuboid, in feet.
If we know that ,
,
,
and
, then the volume of the composite figure is:
The volume of the composite figure is approximately 3567.198 cubic feet.