Learn how to write and solve an equation from a word problem

The video tutorial explains how to solve a problem involving the cast of a High School Musical. It starts by introducing the problem, which involves calculating the number of seniors in the cast. The teacher sets up an equation using the given information about freshmen, sophomores, juniors, and seniors. The equation is solved step-by-step, demonstrating how to handle fractions and algebraic manipulation. The solution reveals that there are 9 seniors in the cast. The session concludes with an invitation for questions.

How many sophomores are in the cast of the high school musical?

• 1

• 6

• 11

• 9

What is the total number of cast members excluding seniors?

• 18

• 17

• 16

• 15

What fraction of the cast are seniors?

• 1/3

• 1/2

• 1/4

• 1/5

What operation should be used to find one-third of a quantity?

• Divide by 3

• Subtract 3

• Multiply by 3

• Add 3

How many seniors are in the musical cast?

• 12

• 6

• 11

• 9