Rearrange formulas involving multiple variables, and use the rearranged formula to solve related problems
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
Rearrange the formula d=rt to solve for t.
📘 Worked solution
✓Divide both sides by r to isolate t.
And one from the hard end
Rearrange c²=a²+b² (Pythagorean relationship) to solve for a, then find the leg length a of a right triangle with hypotenuse c=13 and other leg b=5.
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
Your Winny Score tracks you as the questions ramp up. Stuck on one? A real Winny Math tutor will walk you through it. First lesson free.
Start practicing