Each dance class is 3/4 hour. It takes a student 7 1/2 hours to learn a dance routine. Which statement is true

1 answer

To determine how many dance classes it takes for a student to learn a dance routine, we can divide the total hours it takes to learn the routine by the length of each dance class.

  1. Convert the time values to fractions or improper fractions:

    • The time for each class is \( \frac{3}{4} \) hour.
    • The total time to learn the routine is \( 7 \frac{1}{2} = \frac{15}{2} \) hours.
  2. Calculate the number of classes needed: \[ \text{Number of classes} = \frac{\text{Total time to learn routine}}{\text{Time per class}} = \frac{\frac{15}{2}}{\frac{3}{4}} \]

  3. Dividing fractions: Dividing by a fraction is the same as multiplying by its reciprocal: \[ \frac{\frac{15}{2}}{\frac{3}{4}} = \frac{15}{2} \times \frac{4}{3} = \frac{15 \times 4}{2 \times 3} = \frac{60}{6} = 10 \]

Thus, the student needs 10 dance classes to learn the routine.

Statement: It is true that the student requires 10 classes to learn the dance routine.