Ratios
In a drawing, there are 3 circles, 4 stars, and 3 triangles. What is the ratio of stars to the total number of shapes.
What is 2/5 or 4/10
5 shovels of sand are mixed with 4 shovels of gravel to make cement. What is the number of shovels of gravel needed for 45 shovels of sand.
Sand Gravel
5 4
45 ?
36 shovels of gravel
Are the ratios 14/35 and 20/50 equivalent?
14 : 35
20 : 50
Reduce to....
Yes they are. Their common ratio is 2:5.
Of the 15 children at the park, 12 children are riding bikes and 3 children are riding scooters. What is the ratio of bikes to children? WRITE 3 WAYS!
bikes scooters
12 3
12 to 15
12/15
12:15
Lil blew up 7 balloons. Kathy blew up 5 balloons. What is the ratio of total balloons to Kathy's balloons?
7 + 5
12 to 5
Ari can walk 2 miles in 40 min. What is the amount of time it will take him to walk 4 miles.
miles minutes
2 40
4 ?
80 min.
The ratio 7:12 as a fraction and a decimal rounded to the hundredths.
7/12 and 0.58
A car can travel 600 miles on 20 gallons of gas. What is the unit rate of miles per gallon for this car?
miles gallons of gas
600 20
1
30 to 1
The recipe calls for 2 eggs, 8 cups of flour, 3 teaspoons of oil, and a pinch of salt. What is the ratio of cups of flour to eggs?
8:2 OR 4:1
Paul used 6 black tiles and 12 white tiles for a pattern. What is the ratio of black tiles to white tiles?
black white
6 12
1:2 or 6:12
In the workbench drawer, there are 3 hex bolts to all bolts is 50. Write the ratio as a fraction in simplest form.
3/50
The ratio of cups of peas to cups of carrots is 3 to 2. Write 3 equivalent ratios.
peas carrots
3 2
How can you do 3 more? (+, -, x, /)
6 to 4, 12 to 8, 15 to 10
There are 10 rabbits in a cage. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in the cage?
3 white rabbits
30 buses can carry 1500 people. What is the number of people that can be carried by 5 buses.
buses people
30 1500
5 ?
250 people
In a recent student government election, the ratio of students who voted for the winner to all the students who voted was 0.55. The number of students who voted was 60. How many votes did the winner get?
.55 (x or /) 60
33 students voted for the winner
Ahmad's mom prepares a plate with 5 peaches and 4 apples for 6 students in his study group. What is the ratio of fruit to students written as a fraction?
peaches apples fruit students
5 4 9 6
9/6 OR 3/2
There are 5 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?
3 mice
Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. What is the number of crates that 8 trucks can carry.
trucks crates
2 80
8 ?
320 crates
In basketball, Katrina makes 12 out of every 20 free throws. Her coach claims that if she tries 42 free throws, she should make 18 of them. Is the coach's claim correct? Let's reduce
12 : 20 =
18: 42 =
No the coach is not correct.
A recipe uses 2 cups of chopped onions, 6 cups of chopped tomatoes, 1 tablespoon of olive oil, and 3 potatoes. How many cups of tomato are need to triple the recipe? Explain.
18, because 6 X 3 = 18.