Edexcel IGCSE Math A 2.4.B Forming Linear Equations from Data
Practise translating totals, costs, perimeters and grouped quantities into a linear equation and interpreting its solution.
- Syllabus
- First assessment 2018
- Course
- Math A 4MA1
- Level
- Higher
Exam points
- represent each worded quantity algebraically before equating it to the stated total
- form a cost or perimeter equation with consistent units and like terms collected
- solve the equation, then substitute back to calculate the quantity actually requested
2.4.B Forming linear equations question 1
[Maximum number: 4]
Work out the number of metal bars that are zinc.
Show clear algebraic working.
Total bars:
y+(3y+7)+(2y-5)=566y+2=56y=9
Zinc bars:
2y-5=2(9)-5=13
Final answer:
13
Special cases from the markscheme are preserved.
All question bank results loaded