Rate+and+Speed

Here are the PPT slides covered in class.









__**Rate Practice Problems:**__
1. Container A, measuring 30 cm by 20 cm by 30 cm, is 4/5 full of oil. Container B, whose base measures 20 cm by 20 cm, is empty. After transferring some oil from Container A to Container B at a constant rate for 40 seconds, Container A becomes 2/3 full. At what rate is the oil being transferred to Container B?

2. There are two photocopiers, A and B, in a school office. In every 4 minutes, photocopier A can print 150 pages while photocopier B can print 180 pages. (a) How long will a teacher take to print 4950 pages of worksheets, if she uses both photocopiers concurrently? (b) How long will she take to print the same number of pages of worksheets if Photocopier B breaks down after 20 minutes of continuous printing?

3. In a farm, 12 ducks lay 36 eggs in 4 days on average. How many eggs will 6 ducks lay in 6 days on average?

__**Answers to Rate Practice Problems:**__ 1. 60cm3/s 2a. 60 min 2b. 108 min 3. 27 eggs

Resource: Learning Interactive