Ratios/Unit Rates
Proportions
Percent of a Number
Proportional relationships
I need more vocab!
100
Are 6/14 and 15/35 equivalent?
yes
100
Are 12/15 and 20/25 proportionate?
yes
100
What is the percent equation?
a = p times w or part of a whole = percent times whole
100
On a graph, a line has to go through what to be proportional?
(0,0)
100
This is the method we use to determine if two ratios form a proportion.
What is cross-products?
200
A unit rate is per....
1 of something
200
If 6 oranges cost $2.34, how much would 15 oranges cost?
$5.85
200
3 is what percent of 8?
37.5%
200
Which equation shows a proportional relationship:y=3.5x or y=2x + 4?
y=3.5x
200
Sally bought grapes for $2.99 per pound. Cost per pound is an example of this.
What is unit price?
300
If Cindy walks 7/10 of a mile in 1/5 of an hour, how fast does she walk?
3.5mph
300
If your heartbeats 21 times in 15 seconds, what is your heartrate in beats per minute?
84 beats per minute
300
What is 20% of 50?
10
300
IS there a proportional relationship?
NO
300
This compares two or more quantities.
What is a ratio?
400
The world record for eating hotdogs is 70 and a 1/2 hotdogs in 1/6 of an hour. At that same pace, what would be his rate per hour?
423 hotdogs per hour
400
IF an antelope ran 237 ft in 3 seconds and ran at the same rate, how long would it take him to run 790ft?
10 seconds
400
40% of what number is 36?
90
400
Another name for the constant of proportionality is...
unit rate
400
This is a statement of equality for two or more ratios.
What is a proportion?
500
A whole pizza has 2,975 calories. If you cut it into sevenths, what is the unit rate of calories per slice?
425 calories per slice
500
A recipe with 2 1/2 oranges and 16 grapes serves 4 people, how many oranges and grapes will I need if I am having 10 people over?
6.25 oranges and 40 grapes
500
6% of what is 90.3?
1,505
500
What is the constant of proportionality?
$300 in 1 day
500
Tommy drove his car 35 miles per hour. Miles per hour is an example of this.
What is unit rate?