Ratios & Proportions
There are eight students wearing glasses.
There are six students wearing a red shirt.
What is the ratio of students wearing glasses to the student wearing a red shirt?
Ratio= 4:3 4 to 3 4/3
What is the area of the square that has a length
75
AREA= 5625
What is the formula for volume .
Formula 1=length x height x width
Formula 2= base x height
What is 20% of 40.
Answer= 8
Jared took an engineering exam and got 35 correct and 10 incorrect answers. What percent did Jared score.
Answer= 77.8%
What is a Ratio?
A ratio is a comparison of two quantities.
Define Area
Area= The amount of space in the flat boundary
Define Volume
Volume= the amount of space something takes up.
105 = m x 300
Find the missing number.
m= 55
A recipe calls for 6 teaspoons of sugar for 8 servings. If you want to make 10 servings, how many, teaspoons of sugar should you use?
75 teaspoons of sugar
What are the 3 ways to write ratios?
1. with a colon :
ex 1:2
2. with the word 'to'
ex 1 to 2
3. as a fraction
ex 1/2
What is the area of a triangle with a height of 17.7 cm and a width of 11.4 cm?
Area= 100.89 cm 2
l= 30 cm
w= 10 cm
h= 6 cm
VOLUME= 1800 cm 3
What is a proportion? Give an example.
Answer varies
If the bottom of a flower pot has a radius of 8 in, what is the area of the bottom of the flower pot in inches?
The area of the bottom of the flower pot is
200.96 in 2
10 students go to band. 15 students go to drama. 20 students go to stem. 5 students go to art.
What is the ratio of students going to band to students going to stem?
What is the ratio of students going to art to the students going to stem?
Ratio= 1:2
Ratio= 1:4
Find the area of the circle.
Diameter= 36 cm
Area= 1017.36 cm 2
Ms. Ling wants to buy fish as a class pet. She wants to know the volume of the fish tank and how many gallons of water it could hold.
l=12 w=14 h=18
1 gallon= 231
What is the volume and how many gallons of water are needed.
*Volume= 3024 in 3
*13.1 gallons are needed to fill the tank