# word problem   81 videos

• #### Comma Rules

##### GrammarSentence Problems

The rules for placing commas in sentences.

sentence problems comma rules
• #### Parallel Structure

##### GrammarSentence Problems

How to form sentences with parallel structure.

sentence problems parallel structure
• #### Sentence Fragment

##### GrammarSentence Problems

Identify and revise sentence fragments.

sentence problems sentence fragment
• #### Comma Splices

##### GrammarSentence Problems

How to identify unnecessary commas.

sentence problems comma splices
• #### Percent Concentrations

##### AlgebraWord Problems Using Systems of Equations

How to solve word problems about mixing two liquids with different percent concentrations.

percent concentration mixture
• #### Selling Multiple Items

##### AlgebraWord Problems Using Systems of Equations

How to set up a system of equations to represent word problems where someone is selling multiple items.

system of equations coefficient elimination
• #### Calculating Percents

Solving percent problems using proportions

• #### Sentence Completion, Part 2

sentence completion problems prediction vocabulary
• #### Tangent Lines and Optimization

##### AP Calculus ABAP Calculus Videos
Equations of tangent lines optimization problems
• #### Postulate, Axiom, Conjecture

##### GeometryGeometry Building Blocks

How to differentiate between the words postulate, axiom, and conjecture.

postulate axiom conjecture
• #### Locus and Definition of a Circle and Sphere

##### GeometryCircles

How to define a circle and a sphere using the word locus.

locus set of points distance plane circle sphere given
• #### Percents

##### AlgebraPre-Algebra

How to set up percent problems as proportions.

percent cross multiply proportion
• #### Applied Linear Equations: Consecutive Numbers

##### PrecalculusLinear Equations and Inequalities

How to solve a problem involving consecutive integers.

consecutive numbers
• #### Planck's Constant

##### ChemistryThe Atom

Understanding and solving problems using Planck's constant.

blackbody radiation thermal contact thermal equilibrium
• #### Heat of Formation

##### ChemistryThermochemistry

How to use heat of formation in thermochemical problems.

heat of formation enthalpy hermochemical equation
• #### Buoyancy

##### PhysicsSolids, Liquids and Gases

Problems to aid in the understanding of buoyant force and Archimedes' Principle.

buoyancy buoyant force archimedes principle
• #### Physics Siphoning - Torricellis Law

##### PhysicsSolids, Liquids and Gases

How to solve siphoning problems using Torricellis Law.

siphons siphoning torricelli law