Question

If 42 × 43 = n, then which division equation is also true?

Answer 1

43 divided by n is equal to 42

Answer 2

Answer:

The division equations $43=n\div 42$ and $42=n\div 43$ are true.

Step-by-step explanation:

The given multiplication equation is

$42\times 43=n$

We need to find a division equation which is true if 42 × 43 = n.

Case 1: Divide both sides by 42.

$\frac{42\times 43}{42}=\frac{n}{42}$

$43=n\div 42$

Case 2: Divide both sides by 43.

$\frac{42\times 43}{43}=\frac{n}{43}$

$42=n\div 43$

Therefore the division equations $43=n\div 42$ and $42=n\div 43$ are true.