Model Ratios
Equivalent Ratios
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Solve Equivalent Ratios
Word Problems
100
How much is it for 1 hotdog?
$3.00
100
Write 3 more Equivalent Ratios:
1/4
2/8, 3/12, 4/16
100
Convert 5:100 to a percent.
5%
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 much would it cost for 75 items?
$375
200
Are the Ratios Equivalent?
Show Evidence and write Yes or No.
5/10 = 3/6
30 = 30
Yes!
200
Convert the ratio 1:5 to a percent.
20%
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?
$20
300
Will I earn more or less than $150 if I work 12 hours?
Less! In 12 hours, I make $144.
300
Write 3 more equivalent ratios to 2/3
4/6, 6/9, 8/12, etc...
300
Percents to ratios 51%
51:100
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?
24
400
What is the greatest numbers of necklaces I can make with 75 beads?
21 necklaces!
1 necklace = 3.5 beads
21*3.5 = 73.5 beads
22*3.5 = 77 beads (NOT ENOUGH)
400
Are the Ratios Equivalent?
Show Evidence and write Yes or No.
8/10 = 16/18
144 = 160
No!
400
The property we use to make equivalent ratios: multiplicative or additive?
multiplicative
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?
40
500
How much would it cost for 23 items?
$115
500
Kyle says that 3/4 and 5/6 are equivalent because you can add 2 to the numerator and the denominator. Is he correct? Explain your answer.
NO! Equivalent ratios are made by multiplying/dividing the numerator and denominator by the same number--NOT adding/subtracting.
500
What would the unit rate be of total cars to blue cars if in an hour 30 cars passed by a house, and 6 were blue?
1 blue car to every 5 cars
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?
117