Ratios
Simplify the ratio 3:30
1/10
What is the unit rate? 65 miles in 10 hours
6.5 mph
Solve: 8/3 = k/18
k = 48
Solve: 2/9 = 3/d
d = 13.5
3/4
What is the unit rate? $14.25 for 5 pounds of rice
$2.85 per pound of rice
Solve: 4/7 = n/21
n = 12
Are the proportions equal? 2.1/3.5 = 3/5
Yes
Solve: 3/5 = k/25
k = 15
What are three ways to write the ratio? 5 wins and 3 losses
5:3 5 to 3 5/3
Is this rate a unit rate? Why or why not? 10 laps every 20 minutes
No, because a unit rate means per one unit.
Solve: 3.2/5 = z/20
z = 12.8
Are the proportions equal? 12/20 = 9/13
Solve: a/15 =6/5
a = 18
is the following ratio greater less than or equal to? 9:15_18:30
9:15=18:30
Compare using <, > or =
12 km per 1.5 gallons and 40 km per 5 gallons
12km per 1.5 gallons = 40km per 5 gallons
Solve: 6/1.5 = x/24
x = 96
Are the proportions equal? 1.5/3 =2/6
No
Write three other ratios that are proportional to 2/5
4/10
20/50
6/15
Sarah's team won 10 games and lost 12. In any form, what is the ratio of games won to games played?
10 : 22
10 to 22
10/22
A store sells the same rice in 2 ways: 10 pounds of rice for $15.00 or 2 pounds for $3.98 which is a better buy?
10 pounds of rice for $15.00
The elevators in some sky skyscrapers can pass 80 floors in 45 seconds. How many floors can they pass in 9 seconds?
16 floors
Rosa spent $0.75 on drying one load of laundry at the Laundromat. $0.25 operates the dryer for 15 minutes. How long did it take Rosa to dry her clothes?
45 minutes
A skater took 2 minutes & 30 seconds to complete a 1500 meter race. What was the skaters average speed in meters per second? (unit rate)
10 meters per second