Ratios
There are 15 Gatorades and 12 Monsters in the 7/11 checkout area. Determine the simplified ratio of Monsters to Gatorades.
4:5; 4 Monsters for every 5 Gatorades.
A car travels 480 miles with 16 gallons of gas. How many miles can it travel per gallon of gas?
30 miles per gallon
Proportional or not?
2/3 and 6/9
YES
The diameter of the circle is 7in. Find the Circumference of the circle.
C=pi x d
What is 21.99=21
A = pi x r2
A= pi x 42
A= 50.3
There are 30 chocolates being shared among 6 students. Identify the unit rate of chocolates per student.
5:1; 5 chocolates per student.
3 boxes can hold 12 books. How many books are held in each box?
There are 4 books in each box
Identify the missing value:
1.5:4 13.5: ?
The missing value is 36.
1.5 x 9 = 13.5, so
4 x 9 = 36
The radius of the circle is 6 in. What is the Circumference?
C= 2 x pi x r
C= 37.69 = 37.7
The diameter of the circle is 10 in. What is the area?
A= pi r2
A= pi x 52
A= 78.5 in2
In a candy bouquet, there are 10 Air Heads, 4 boxes of Sour Skittles, 3 bags of Doritos, and 5 chocolate roses. Identify the simplified ratio of boxes of Sour Skittles to the number of Air Heads in the bouquet.
2:5; 2 boxes of Sour Skittles for every 5 Air Heads.
136 students fit into 8 classrooms. If the ratio of students to classrooms is constant, identify how many students per classroom.
17 students per classroom
Proportional or not? 8/20 and 24/80
Nope!
8 x 3 = 24, but
20 x 3 does NOT equal 80!
We are putting a decorative border around a circular dining table. The radius measures 18 inches. What is the circumference?
C= 2 x pi x r
C= 2 x pi x 18
C= 113.1 inches
We need to measure space to place a circular picture on the wall. The radius of the picture is 6 inches. Determine the area of the picture frame.
A = pi x r2
A= pi x 62
A= 113.1
In the 6th grade, there are 80 boys and 60 girls on track to attend the dance this month. Write the simplified ratio of girls to total students who are on track to attend the dance.
3:7; 3 girls for every 7 students.
There are 52 pints of juice in 4 containers. How many pints of juice are in each container?
There are 13 pints in each container
Identify the missing value:
3.5:2 7:?
3.5 x 2 = 7, so
2 x 2 = 4
TRUE OF FALSE: A DIAMETER IS A CHORD
TRUE
TRUE OR FALSE: A CHORD IS ALWAYS A DIAMETER
FALSE
What is the ratio of I's to total letters in the word "Mississippi"?
4:11
A teacher typically answers 150 questions in 25 minutes. If this is a proportional relationship, how many questions are typically answered per minute?
She answers 6 questions per minute
Proportional or not? 5.25/4 and 21/16
YES
The diameter of the cookie is 2.5 in. What is the circumference?
C = pi x d
C= pi x 2.5
C= 7.85 in
The diameter of the circle is 13 cm. What is the radius and area?
Radius: 6.5
A= pi x r2
A= pi x 6.52
A= 132.7 cm2