Question

samir spent half as long working on his physics homework as cory did. if samir spent 40 minutes on his physics homework, how long did cory spend on his physics homework? choose 1 answer: a 40 minutes b 20 minutes c 80 minutes d 60 minutes

Explanation:

Step1: Set up the relationship

Let $x$ be the time Cory spent. Samir spent half as long as Cory, so Samir's time is $\frac{x}{2}$.

Step2: Substitute Samir's time

We know Samir spent 40 minutes, so $\frac{x}{2}=40$.

Step3: Solve for $x$

Multiply both sides by 2: $x = 40\times2=80$.

Answer:

C. 80 minutes