lesson 5 unit rates with fractions.notebook
October 07, 2015
10/7 Problem of the Day
Mrs. Mellies Davis wants to buy mini basketballs for the Flyer Store. The table shows different package sizes for purchasing basketballs.
What is the unit rate for each quantity?
Which quantity is the better buy?
Oct 5­7:08 PM
1
lesson 5 unit rates with fractions.notebook
October 07, 2015
These snails move very slowly. Here are their speeds.
Snail A 5 inches in 10 minutes
Snail B 3 inches in 20 minutes
Snail C 1 inch in 15 minutes
Snail D 6 inches in 30 minutes
Which snail moves the quickest?
Oct 5­7:19 PM
2
lesson 5 unit rates with fractions.notebook
October 07, 2015
10/7 Lesson 5: Unit Rates with Fractions
complex fraction ­ a fraction where the numerator or denominator is itself a fraction
A standard track is 400 meters, so it is 0.40 km or 2
5
kilometers around.
2
Angel and Jayden were at a track practice. The track is 5
kilometers around. Angel ran 1 lap in 2 minutes. Jayden ran 3 laps in 5 minutes.
1. How many laps does it take to run 1 kilometer?
2. How many minutes does it take Angel to run a kilometer? What about Jayden?
3. How far does Angel run in one minute? What about Jayden?
4. Who is running faster? Explain your reasoning.
Oct 5­7:29 PM
3
lesson 5 unit rates with fractions.notebook
October 07, 2015
1
1
5. Josiah can jog miles in hour. Find his average 13
4
speed in miles per hour.
1
1
6. If the temperature is rising degree each hour, what 2
5
is the increase in temperature expressed as a unit rate?
7. Arrange these rates from least to greatest:
30 miles in 25 minutes
60 miles in one hour
2
70 miles in hour
3
1
8. Two container filled with water are leaking. Container A 1
2
leaks at a rate of gallons every hour. Container B 4
3
1
3
leaks at a rate of gallons every hour. Determine 3
4
which container is leaking water more rapidly. Oct 5­8:30 PM
4