Ratios and Rates
Proportions
Similar and Congruent Figures
Scale Drawings
Probability and Odds
100
Uses division to compare two quantities.
What is a ratio?
100
1 x --= --- 2 50
What is 25?
100
Figures that have the same shape but not necessarily the same size.
What are similar figures?
100
A two-dimensional drawing that is similar to the object it represents.
What is scale drawing?
100
A probability based on repeated trials of an experiment.
What is experimental probability?
200
The simplest form of 24:8.
What is 3:1? (3/1 or 3 to 1)
200
x 200 -- = ------ 5 25
What is 40?
200
When two figures have the same shape and the same size.
What are congruent figures?
200
Scale: 1cm:5km The actual distance is 55km.
What is 11cm?
200
Each letter in the word THEORETICAL is written on a separate slip of paper and placed in a hat. A letter is chosen at random from the hat. The probability that the letter chosen is an E is x.
What is 2/11?
300
The unit rate of $161/7 shares.
What is $23/1 share?
300
14 a --- = --- 3 15
What is 70?
300
This angle is congruent to
What is
300
Scale: 1cm:5km The actual distance is 45km.
What is 9cm?
300
Using a coin the theoretical probability that a coin lands heads up when tossed is P.
What is 1/2?
400
The equivalent rate of 300 mi ? mi --------- = -------. 20 sec 1 min
What is 900?
400
x 35 -- = ---- 8 56 (HINT: use algebra)
What is 5?
400
In a scale drawing, a sofa is 3 inches long. The scale of the drawing is 1:32. (Find the actual length of the sofa).
What is 8?
400
The probability of not rolling a one on a number cube.
What is 5/6?
500
An aqurium has twice as many angelfish as goldfish. This is the ratio for the number of GOLDFISH to the total number of FISH.
What is 1/3? (1:3 or 1 to 3)
500
The amount of erasers you can buy at a store for $7.50 if 5 erasers cost $2.50.
What is 15(erasers)?
500
Sides or angles that have the same relative position.
What are Corresponding Parts?
500
You want to make a banner that says WELCOME HOME. You want the letters to be 2 feet high. You make a sketch in which the letters are 2 inches high. The entire phrase in your sketch is 20 inches long. The length of paper you should buy is x.
What is 20(feet)?
500
You have a bag filled with 12 red marbles, 9 blue marbles, and 14 green marbles. You randomly select a marble from the bag, and its blue.
What is 9/35?