Word problems relating 3 variable systems of equations
 All You Need in One PlaceEverything you need for Year 6 maths and science through to Year 13 and beyond. | Learn with ConfidenceWe’ve mastered the national curriculum to help you secure merit and excellence marks. | Unlimited HelpThe best tips, tricks, walkthroughs, and practice questions available. |
Make math click 🤔 and get better grades! 💯Join for Free
Examples
Lessons
- Quadratic Equation Problem
Find the equation of the parabola, , that passes through (-2, -10), (1, -4), (3, 30).
- Number Problem
The sum of the digits of a three-digit number is 16. The units digit is 2 more than the sum of the other two digits, and the tens digit is 5 more than the hundreds digit. What is the number?
- Geometry Problem
The measure of the largest angle of a triangle is 30° less than the sum of the measures of the other two angles and 9° less than 2 times the measure of the smallest angle. Find the measures of the three angles of the triangle.
- Investment Problem
Thomas has $6000 invested among a checking account paying 2% annual interest, a savings account paying 5% annual interest, and a bond paying 7% annual interest. He earns a total of $355 in annual interest and he has $2300 less invested in his savings account than in her bond. How much has he invested in each account?
