Ratios
Revenge of the Ratios
Equivalent Ratios
Percent of a Quantity
Percents
100
In a drawing, there are three circles, four stars, and three triangles. What is the ratio of stars to the total number of shapes.
4:10 or 2:5
100
If 45 cookies will serve 15 students, how many cookies are needed for 60 students?
180 cookies
100
Write an example of scaling down the ratio 6:24
1:4 or 3:12
100
20% of 180
36
100
Express 9% as a decimal.
0.09
200
Paul used 6 black tiles and 12 white tiles for a pattern. It is the ratio of black tiles to white tiles.
6:12 or 1:2
200
What is the missing value in this pair of equivalent ratios 5:12 and ____:156
65
200
Write an example of scaling up the ratio 2:5
4:10 or 6:15, etc
200
48% of 725
348
200
88% expressed as a fraction in simplest form.
22/25
300
There are 12 boys and 14 girls in math class. Write a ratio that compares the number of girls to the number of boys.
14:12 or 7:6
300
A survey reported that out of 50 teenagers, 9 teenagers said they get their news from a newspaper. At this rate, how many out of 300 teenagers would get their news from a newspaper?
54 teenagers
300
The recipe calls for 2 eggs for every 8 cups of flour. How many eggs are needed with 40 cups of flour?
10 eggs
300
4% of 200
8
300
Express 62/120 as a percent rounded to the nearest whole number.
52%
400
There are 8 orange and 10 strawberry flavored candies in a bag. What is the ratio of orange candies to total candies?
8:18 or 4:9
400
Mr. Bonitto and Ms. Boyd were folding report cards to send home to parents. The ratio of the number of report cards Mr. Bonitto folded to the number of report cards Ms. Boyd folded is 2:3. At the end of the day, Mr. Bonitto and Ms. Boyd folded a total of 300 report cards. How many did each person fold?
Mr. Bonitto folded 120 report cards and Ms. Boyd folded 180 report cards.
400
There are 40 rabbits in a cage. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in the cage?
12 white rabbits
400
90% of 1,350
1,215
400
Mrs. Benitez earns $3,400 ever month. She spends 25% of her earnings on rent. How much does she spend on rent?
$850
500
How do you write a ratio in 3 ways? *These are the numbers you need to use 6 and 4
6 to 4, 6:4, and 6/4
500
Tom and Rob are brothers who like to make bets about the outcomes of different contests between them. Before the last bet, the ratio of the amount of Tom’s money to the amount of Rob’s money was 4:7. Rob lost the latest competition, and now the ratio of the amount of Tom’s money to the amount of Rob’s money is 8:3. If Rob had $280 before the last competition, how much does Rob have now that he lost the bet?
Rob has $120.
500
There are 75 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?
45 black mice
500
19 is _____% of 95
20%
500
Of the 800 people at a concert, 42% of them are adults. How many adults are at the concert?
336 adults
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