Answer:
$38.31
Step-by-step explanation:
Given:
Pure silver that cost $33.48 per ounce used to form $24.35 alloy/ounce.
Question asked:
How many ounces of pure silver were used to make an alloy of silver costing $27.87 per ounce?
Solution:
At cost $24.35/ounce, pure silver is mixed = $33.48
At cost $1/ounce, pure silver is mixed = ![\frac{33.48}{24.35}](https://tex.z-dn.net/?f=%5Cfrac%7B33.48%7D%7B24.35%7D)
At cost $27.87/ounce, pure silver is mixed = ![\frac{33.48}{24.35}](https://tex.z-dn.net/?f=%5Cfrac%7B33.48%7D%7B24.35%7D)
![\times 27.87 = \frac{933.08}{24.35} = 38.31](https://tex.z-dn.net/?f=%5Ctimes%2027.87%20%3D%20%5Cfrac%7B933.08%7D%7B24.35%7D%20%20%3D%2038.31)
Thus, $38.31 ounces of pure silver were used to make an alloy of silver costing $27.87 per ounce.
6.1 units you count how many number are far away from each other
By definition we have:
A triangular pyramid (also called tetrahedron) is a polyhedron whose surface is formed by a base that is a triangle and triangular lateral faces that converge in a vertex that is called apex (or apex of the pyramid).
It will be composed, therefore, by 4 faces, the triangular base and three lateral triangles that converge at the vertex.
Thus, the surface area is:
As = 4 * (50.5) = 202 in ^ 2
Answer:
The total surface area of the triangular pyramid is:
202 in ^ 2