You can set up an proportion like this:
———- = ————
You can use this way for future questions.
On the left denominator/bottom, place 100, as for percents it will always be 100. On the right denominator, place 30/ the whole. On the right numerator/top, place an x, as the part is unknown. On the right numerator, place 30%/The percent.
You multiply across, then divide what’s left over.
1) multiply: 30 candles x 30 = 900
2) divide: 900/100= 9
After you blow 30% of your 39 candles, you will have 9 candles that are still lit.
