Hat sizes are determined by measuring the circumference of ones hesd in either inches or centimeters. Use ratio and porportion to complete the following table.

hat size: 7 1/2(to the nearest 1/8 inch)

head sircumference: 23 3/5(round to the nearest 1/5

( head circumference to the nearest centimeter)

Second problem:

Sue can shovel snow from her driveway in 30 min. Jim can do the same job in 65 min. How long would it take Jim and Sue if they did the job together?

(answer in minutes)

Third problem:

The speed of train A is 10mph slower than the speed of train B. Train A travels 200 miles in the same time train B travels 250 miles. Find the speeed of each train.

Train A:

Train B: