Answer: $3.50
Explanation:
Let's denote the cost of one candle as \( x \) dollars. The cost of one candle holder is $2.50. According to the information provided:
1. Kayla buys 6 candles, so the cost of the candles is \( 6x \) dollars.
2. Kayla buys 6 candle holders, so the cost of the candle holders is \( 6 \times $2.50 = $15 \) dollars.
The total cost for candles and candle holders is $36. Therefore, we can set up an equation:
\[ 6x + 15 = 36 \]
Now, solve for \( x \):
\[ 6x = 36 - 15 \]
\[ 6x = 21 \]
\[ x = \frac{21}{6} \]
So, \( x \), the cost of one candle, is \( \frac{21}{6} \) dollars or $3.50. Therefore, one candle costs $3.50.