Answer:
---- Hao Sheng
--- His father
---- His grandfather
Step-by-step explanation:
Given
From the question, we have:
--- The average of their age
--- 4 years ago
Required
Their current age
Open bracket
Make z the subject
Multiply by 12
Substitute in
Collect like terms
Substitute in
Multiply through by 3
Collect like terms
Make y the subject
Substitute in
Collect like terms
Divide by 7
Solve for y in
Solve for z in
In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. The cube is the only regular hexahedron and is one of the five Platonic solids. It has 6 faces, 12 edges, and 8 vertices. The cube is also a square parallelepiped, an equilateral cuboid and a right rhombohedron. It is a regular square prism in three orientations, and a trigonal trapezohedron in four orientations. The cube is dual to the octahedron. It has cubical or octahedral symmetry. The cube is the only convex polyhedron whose faces are all squares.
Step-by-step explanation:
sum=addition
3/10 +1/3
find the LCM of 10 and 3 Which is 30
9+10/30=19/30
I hope it helps ☺️
D when dividing, subtract the exponent on the bottom from the one on the top. a plain q has an exponent of 1.
5%
because 30/100 - 25/100 = 5/100