Ratios
2:3 or 2 to 3
Find an 2 equivalent ratios to the ratio 2:9.
4:18
6:27
20:90
40:180
There are more I will determine if they are correct
Sarah eats 20 hot dogs in 4 min. What is the rate at which she ate the hot dogs.
5 hot dogs per min
What is an example of something that we can compare prices or times of with rates?
Food prices
Speed of animals
ECT.
Cody types at a constant rate of 1/6 pages per min.
What is the ratio of the number of pages to the number of minutes?
What is the rate?
1:6
6 min per page
Name a ratio you might use when cooking?
Answers will Vary, MRS.WATTS is the judge
When finding an equivalent ratio using multiplication what is the number called that we multiply by to get the new ratio?
C- Value
What is a rate that we see everyday?
Miles per hour
There are more answers that work.
Willis ran a 300 meter race in 3 min. Savion ran a race going 660 meters in 3 min. Who is faster?
Savion is faster.
There are two brands of cookies. Brand A gets you 30 lbs for $5. Brand B gets you 80 lbs for $12.
What is the unit rate of BOTH brands cookies.
Brand A $0.16 a lb
Brand B $0.15 a lb
How do you say this ratio?
4:9
four to nine
True or False
2:7 equivalent to 40:140
True
9
Which is QUICKER?
Traveling at 75 miles per hour for 3 hours OR
Traveling 80 miles in 4 hours.
Traveling 75 miles in 3 hours because that is 25 miles an hour compared to 20 miles per hour.
A 7th grade math teacher can grade 20 homework assignments in 15 min. Is she working faster or slower than the teacher that can grade 30 homework in 30 minutes? Justify your answer.
Faster
What does a ratio show when talking about 2 things?
a relationship
What is it called when we have a ratio that has the same value as another?
an equivalent ratio
Julie makes 192 in 16 hours? What is the unit rate at which she is making?
12 dollars per hour
Which is a better deal?
Buying 20 pieces of chocolate for $5 OR buying 16 pieces for $3.50?
Buying 16 pieces for $3.50.
If a car traveled at 50 miles per hour for 3 hours, how far did the car travel?
150 miles
Casey types at a speed of 1/4 pages per min.
What is the ratio of pages to min?
1:4
1 to 4
Create a table of equivalent ratios (5) for the number of hot dogs to hamburgers eaten at a picnic if there were 3 hot dogs eaten for every 8 hamburgers.
YOU CAN NOT JUST ADD ZEROS.
3:8
6:16
9:24
12:32
15:40
18:48
21:56
24:64
Which is better?
Reading 1 page every 5 min OR reading 2 pages every 10 min?
Trick question: it is the same speed
Kortni took a trip to her dads house. She drove at a constant speed of 50 miles per hour for 2 hours. She took a break. Then she finished her trip driving 60 miles per hour for 2 hours. What was the total distance she had to travel to get to her dads?
220 miles