Phoebe's T-shirt printing business utilizes two machines with different printing speeds. Here’s a breakdown of how they perform:
- **Machine A**: Can print 200 T-shirts in 50 minutes.
- This means the rate of Machine A is:
\[
\frac{200 \text{ T-shirts}}{50 \text{ minutes}} = 4 \text{ T-shirts per minute}
\]
- **Machine B**: Can print 200 T-shirts in 150 minutes.
- The rate of Machine B is:
\[
\frac{200 \text{


