Unit 6: Rates & Ratios
x to y
x:y
x/y
What does the percent sign look like?
% = 100
What is sample space?
The set of all possible outcomes.
Name at least 3 2-D shapes.
Circle, Triangle, Square, Rectangle, Pentagon, Hexagon, Octagon, etc.
If 6 packs of gum cost $3.00, how much does 1 pack of gum cost?
$0.50 = 50ยข
What is a ratio?
A relationship or comparison of 2 units (x and y)
What is 0.5 as a percent?
50%
What is the sample space of flipping two coins?
HH, HT, TH, TT
Sphere, Cube, Cylinder, Pyramid, Triangular Prism, Rectangular Prism, etc.
Nick has 30 pieces of candy. He shares 25% of his candy with his younger brother. How many pieces of candy does he give?
6 pieces of candy
Write the ratio of door to windows in the classroom.
Count the number
Write 45% as a fraction. Double points for simplifying.
45/100 = 9/20
What is the probability of rolling a 3 on a six-sided die?
1/6 = 0.1666 = 16.66%
What is area?
The amount of space inside a shape
Trisha planned to spend 75% of her birthday money on books. If she received $84 for her birthday, how much did she plan to spend on books?
$63
What is a unit rate? Write an example.
Various answers
What is 70% of 150?
0.70 x 150 = 105
What is the theoretical probability of rolling a number greater than 4 on a die?
2/6 = 1/3 = 0.3333 = 33.33%
What is surface area?
The amount of space around a shape
Tatiana and her family are driving to Florida. They traveled 204 miles in 3 hours. At this rate, how many miles will they travel in 7 hours?
476 miles
How do you find an equivalent rate/ratio? Write an example.
You multiply the rate or ratio (top and bottom, left and right) by the same number.
7.5 is what percent of 150?
5%
What is the probability of picking a red face card in a standard deck of cards? Round to the nearest hundredths.
6/52 = 3/26 = 0.1154 = 11.54%
What is the volume of a shape?
The amount of space inside a 3-D shape
What is the theoretical probability of rolling a 7 with two dice?
6/36 = 1/6 = 0.1666 = 16.66%