40 is 0.08 of what number
40 = 0.08 x so x = 40/0.08 x = 500 40 is 8% of 500
0.08 is 8%0.08 × 100 = 8%40 is 8% of what?40 = 0.08x\(\frac{40}{0.08} = \frac{0.08x}{0.08}\)8 and 8 cancels outx = 500check500 × 0.08 = 40