Ratios
Simplify the ratio: 8 to 30
4 to 15
What is the unit rate of 144 miles in 16 hours?
9 miles per hour
Do each pair of ratios form a proportion? 2/3 and 6/9
YES (18 = 18)
Julie walked 16 miles in 6 hours. How long will it take her to walk 24 miles?
9 hours
What makes a graph proportional?
-Linear
-Goes through the origin (0,0)
Simplify the ratio: 30 to 5
6:1
What is the unit rate of 99 miles to 4 gallons
24.75 miles per gallon
Do the ratios form proportions? 21/6 and 14.3/3 hr
No (63 does not equal 85.8)
The teacher made 30 copies in 5 minutes. How many copies would she make in 25 minutes?
150 copies
What number does the x value have to determine the unit rate?
Simplify the ratio: 24 to 6
4:1
The recipe calls for 9 cups of flour for every 3 cups of sugar. What is the unit rate?
3 cups of flour/ cup of sugar
Find the missing value: 8/x and 24/60
x = 20
There are 1200 calories in an 8 ounce piece of cheesecake. How many calories are in a 3 ounce piece of cheesecake?
450 calories
If a table shows (1,5), (2,10), (3,15), what is the unit rate?
(1, 5)
Are: 29 : 36 and 116 : 144 equivalent ratios?
Yes! They have the same unit rate
Luigi scores 134 points out of 100 games.
Mario scores 96 points out of 50 games.
Who averages more points per game?
Mario - he scores 1.92 points / game
Find the missing value: 5/7 and 25/x
x = 35
Annie bought 3 bags of candy for $1.20. How much do 8 bags of candy cost?
$3.20
What would the point (3, 15) be if x is hours worked and y is dollars?
There are 140 total students. 80 of the students are girls, and 60 of the students are boys. Write the ratio of girls to total students.
80:140
Maria makes $594 dollars after 13 hours of work. How much does he make per hour?
Round to the nearest dollar
$46 per hour
Find the missing value: 5/4 and 25/x
The ratio of vanilla pudding to chocolate pudding in a banana split pie is 4 to 3. Olivia has 64 ounces of vanilla pudding. How much chocolate pudding does she need?
48 ounces.
Is a graph proportional if it goes through the y axis at -1?
No! it must go through the y axis at 0