Uhh where’s the rest of the problem?
-20 = x/8 -8) oh ya and please subscribe to iwpp
<h3>In geometry, a prism is a polyhedron comprising an n-sided polygon base, a second base which is a translated copy of the first, and n other faces, necessarily all parallelograms, joining corresponding sides of the two bases. All cross-sections parallel to the bases are translations of the bases. </h3>
Faces: 2+ n
Edges: 3n
Vertices: 2n
Symmetry group: Dnh,, (*n22), order 4n
Dual polyhedron: convex dual-uniform n-gonal bipyramid
Conway polyhedron notation: Pn
Rotation group: Dn,+, (n22), order 2n
<h3>formula :- The base area of a rectangular prism formula = base length x base width. The base area of a triangular prism formula = ½ x apothem length x base length. The base area of a pentagonal prism formula = 5/2 x apothem length x base length. The base area of a hexagonal prism formula = 3 x apothem length x base length.</h3>
Let's say the test is 100 points.
The 70% mean means that the mean for the 30 students was 70 points. That means 2100 points were scored between all 30 students. (70·30=2100)
20 boys had a mean of 62% or 62 points for our test. That means the boys earned 62·20 points, or 1240 points.
That then means the girls earned 2100 - 1240 points, or 860 points.
Since there are 10 girls, 860/10 = 86 or 86% mean on the test.
Girls rock!
