Model Ratios
Writing Equivalent Ratios
Are the ratios equivalent?
Solve Equivalent Ratios
Word Problems
100
What is the unit ratio of hot dogs to dollars?
1 hot dog to $3.00
100
Write 3 more Equivalent Ratios:
1/4
2/8, 3/12, 4/16
100
Are the Ratios Equivalent?
Show Evidence and write Yes or No.
2/4 = 3/5
10 = 12
No!
100
Solve for x to make the Ratios Equivalent:
x/5 = 8/10
x = 4
100
A recipe requires 2 cups of milk for every 3 cups of flour. If you use 8 cups of milk, how many cups of flour do you need?
12
200
How would you write one of these comparisons as a ratio?
1:5
5:25
10:50
50:250
200
Random chaos!
If there are 5 apples available and Ms. Kaelle takes three, how many does she have?
Ms. Kaelle has 3 apples.
200
Random chaos!
How many planets are in the solar system?
8
200
Solve for x to make the Ratios Equivalent:
3/9 = 9/x
x = 27
200
For every $5 Marcus spends on movies, he spends $15 on video games. Last month, he spent $60 on video games. How much did he spend on movies?
$20
300
Will I earn more or less than $150 if I work 16 hours?
More! In 16 hours, I make $192.
300
Are the fractions 2/4 and 10/12 equivalent?
NOOOO!
300
Are the Ratios Equivalent?
Show Evidence and write Yes or No.
8/10 = 16/18
144 = 160
No!
300
Solve for x to make the Ratios Equivalent:
7/14 = x/42
x = 21
300
Anni went for a long swim. If she swam 12 miles in 3 hours, how far would she swim in 6 hours?
24
400
What is the greatest number of necklaces I can make with 75 beads?
21 necklaces!
1 necklace = 3.5 beads
21 x 3.5 = 73.5 beads
22 x 3.5 = 77 beads (NOT ENOUGH)
400
Write 3 more Equivalent Ratios:
9/13
18/26, 27/39, 36/52
400
Are the Ratios Equivalent?
Show Evidence and write Yes or No.
13/14 = 39/42
Yes! They both can be 39/42
400
Random chaos:
How many days of school are left?
49
400
The ratio of students who like apple juice to grape juice is 4:3. If 30 kids in the class like grape juice, how many kids like apple juice?
40
500
I can read 375 pages in 5 hours. How many can I read in 10 hours?
10 hours = 750 pages
500
Write 3 more Equivalent Ratios:
24/36
12/18, 6/9, 2/3, 8/12, 4/6,
500
Are the Ratios Equivalent?
Show Evidence and write Yes or No.
8/32 = 2/8
Yes! They are both equal to 1/4
500
Solve for x to make the Ratios Equivalent:
18/x = 54/90
x = 30
500
Random Chaos:What is the population of California?
(Give your best estimate and I'll give it to you within a range of 10 million)
39.24 million people