Questions: If the value of 1 roll of gauze is 0.69, what is the value of 3 1/2 rolls?

Solution Steps

The problem asks for the value of \( 3 \frac{1}{2} \) rolls of gauze, given that 1 roll costs \$0.69.

Convert \( 3 \frac{1}{2} \) to an improper fraction: \[ 3 \frac{1}{2} = \frac{7}{2} \]

Multiply the number of rolls by the cost per roll: \[ \text{Total value} = \frac{7}{2} \times 0.69 = \frac{7 \times 0.69}{2} \]

Calculate \( 7 \times 0.69 \): \[ 7 \times 0.69 = 4.83 \]

Divide the result by 2: \[ \frac{4.83}{2} = 2.415 \]

Round 2.415 to four significant digits: \[ 2.415 \approx 2.415 \]

Final Answer