Lisa bought 12 pieces of rope. Each rope was 3/4 of a meter long. If the rope cost $3.50 a meter, how much did she spend?

1 answer

To find out how much Lisa spent on the rope, we can follow these steps:

  1. Calculate the total length of rope Lisa bought:
    Lisa bought 12 pieces of rope, each measuring \( \frac{3}{4} \) meter long. Thus, the total length is:
    \[ 12 \times \frac{3}{4} = 12 \times 0.75 = 9 \text{ meters} \]

  2. Calculate the cost of the rope:
    The cost per meter of rope is $3.50. Therefore, the total cost is:
    \[ 9 \text{ meters} \times 3.50 \text{ dollars/meter} = 31.50 \text{ dollars} \]

So, Lisa spent $31.50.