1,301 prompts matching "Substitution when one equation is already solved for a variable"
IGCSE-style teach me: The equation of a line perpendicular to a given line
I am a Year 10 pupil. Explain the equation of a line perpendicular to a given line in the
IGCSE-style teach me: The formula relating union, intersection and totals
I am a Year 10 pupil. Explain the formula relating union, intersection and totals in the s
Spot My Mistake: A multiplication table in modulo seven (IGCSE Marking)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Explain Back: A market cycle problem in modular arithmetic (IGCSE/WAEC Revision)
I am in SS 1. Let me explain a market cycle problem in modular arithmetic back to you in m
Explain Back: The multiplication and division laws of indices used together (IGCSE/WAEC Revision)
I am in SS 1. Let me explain the multiplication and division laws of indices used together
Teach me (Cambridge style): Combining a fractional index with a negative one
I am a Year 10 pupil following the Cambridge syllabus. Teach me combining a fractional ind
Spot My Mistake: An index that is both negative and fractional (IGCSE Marking)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Spot My Mistake: A sequence built from the triangular numbers (IGCSE Marking)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Quiz Me: Exam Prep on Simultaneous Linear Equations
I am a Year 10 pupil. Quiz me on simultaneous linear equations with a mix of Cambridge IGC
Worked Example: Finding the constant of a direct variation from one pair of values (Show That / Hence Find)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Explain Back: Solving a linear inequality with the unknown on both sides (IGCSE/WAEC Revision)
I am in SS 1. Let me explain solving a linear inequality with the unknown on both sides ba
Worked Example: Using exact ratios to leave an answer in surd form (Show That / Hence Find)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Spot My Mistake: A three-figure bearing read from a diagram (IGCSE Marking)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Explain Back: A journey described by two bearings (IGCSE/WAEC Revision)
I am in SS 1. Let me explain a journey described by two bearings back to you in my own wor
Teach me (Cambridge style): A cone problem needing both volume and surface area
I am a Year 10 pupil following the Cambridge syllabus. Teach me a cone problem needing bot
Quiz Me: Exam Prep on Volume and Surface Area of a Cone
I am a Year 10 pupil. Quiz me on the volume and surface area of a cone with a mix of Cambr
Teach me (Cambridge style): The volume and surface area of a hemisphere
I am a Year 10 pupil following the Cambridge syllabus. Teach me the volume and surface are
Spot My Mistake: The surface area of a sphere as four pi r squared (IGCSE Marking)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Worked Example: The flat circular face counted in a hemisphere's surface area (Show That / Hence Find)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Spot My Mistake: The area of a sector left in terms of pi (IGCSE Marking)
I am in SS 1. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh