Model Ratios
Writing Equivalent Ratios
Are the ratios equivalent?
Solve Equivalent Ratios
Word Problems
100
Is the cost to number of hot dogs proportional? If so, what is the unit rate for all ratios? To prove your answer you MUST list the unit rate for all 5 ratios.
Yes, the proportional relationship is 4:1.
6:2; 12:4; 18:6; 24:8; 30:10
100
Write 3 more Equivalent Ratios using multiplication:
1/4
2/8, 3/12, 4/16
100
Are the Ratios Equivalent?
Write Yes or No. If yes, tell the scale factor (what number the original ratio was multiplied or divided by).
2:4 = 8:12
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? Label your answer.
12 cups
200
Is the cost to number of items proportional? If so, what is the unit rate for all ratios? To prove your answer you MUST list the unit rate for all 4 ratios.
Yes, 5:1
5:1; 25:5; 50:10; 250:50
200
Write 3 more Equivalent Ratios using multiplication:
2/9
4/18, 6/27, 8/36
200
Are the Ratios Equivalent?
Write Yes or No. If yes, tell the scale factor (what number the original ratio was multiplied or divided by).
5:10 = 30:60
Yes! x6
200
Solve for x to make the Ratios Equivalent:
3/9 = 9/x
x = 27
200
For every $5 Carl spends on movies, he spends $15 on video games. Last month, he spent $60 on video games. How much did he spend on movies? Label your answer.
$20
300
What would the amount earned be for 9 hours?
108
300
Are the fractions 2/4 and 5/8 equivalent?
NOOOO!
300
Are the Ratios Equivalent?
Write Yes or No. If yes, tell the scale factor (what number the original ratio was multiplied or divided by).
8:10 = 16:18
No!
300
Solve for x to make the Ratios Equivalent:
7/14 = x/42
x = 21
300
Keely went for a long swim. If she swam 12 miles in 3 hours, how far would she swim in 6 hours? Label your answer.
24 miles
400
What would be the number of items at a cost of $80?
16 items
400
Write 3 more Equivalent Ratios using multiplication:
9/13
18/26, 27/39, 36/52
400
Are the Ratios Equivalent?
Write Yes or No. If yes, tell the scale factor (what number the original ratio was multiplied or divided by).
13:14 = 39:42
Yes! x3
400
Solve for x to make the Ratios Equivalent:
2/16 = x/80
x = 10
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? Label your answer.
40 kids
500
How many hotdogs would you get for $300?
100
500
Write 3 more Equivalent Ratios using division:
24/36
12/18, 6/9, 2/3, 8/12, 4/6,
500
Are the Ratios Equivalent?
Write Yes or No. If yes, tell the scale factor (what number the original ratio was multiplied or divided by).
8:32 = 56:224
Yes! x7
500
Solve for x to make the Ratios Equivalent:
18/x = 54/90
x = 30
500
The ratio of students with straight hair to curly hair in the 7th grade is 4:5. If there are 52 students with straight hair, how many students are their total? Label your answer.
117 students (total)