Ratios & Rates
Name 3 equivalent ratios for 12:4
Answers will vary. Examples are 3:1, 6:2, 24:8, 120:40
Convert 0.63 to both a fraction and a percent.
63/100 and 63%
What is the formula for the constant of proportionality?
k = y/x
- 9 - ( - 3 ) = ____
- 6
What is the name of the type of puzzle we do every day at the start of class?
Rebus puzzles
I have 2 pens for every 7 markers. What is the ratio of pens to markers?
2:7
Convert 7 3/4 to an improper fraction.
31/4
What is the formula for the area of any rectangle?
length x width
A 6-pack of potatoes is $13.50. A 9-pack of potatoes is $14.00. Which is the better buy? Why?
9-pack, each potato is $1.56. In the 6-pack, each potato is $2.25.
Spell the word:
Are the following ratios equivalent? Explain your answer
3:4, 2:3
No
7/8 + 1/2 + 3/4 (Write answer as mixed number)
2 1/8
Solve if x = 4
(x + 7)2
121
Write the following expression in standard form:
3 - 2 (x + 2y) + 1
-2x - 4y + 4
At the store, there are 80 pieces of fruit. 24 of these pieces are bananas. What % of the total fruit are bananas.
30%
I can walk 50 meters in 4 minutes. What is my unit rate?
12.5 meters/minute
There are 300 kids in the school. 15% of them are in 2nd grade. How many students are there in 2nd grade?
45 students
3x + 8 = 5x
x = 6
You start a hike at 89 meters below sea level. You end the hike at 50 meters above sea level. What was your change in elevation?
139 meters
Isaiah and Pat are eating cake. Isaiah's piece of cake weighs 16.40 oz. If Pat's piece is 25% smaller than Isaiah's, how much does it weigh?
12.3 ounces
I'm making a potion. For every 5 cups of fire I put in, I have 7 cups of ice. If I have 48 total cups of ingredients in my cauldron, how many cups of each ingredient do I have?
20 cups of fire, 28 cups of ice.
Multiply: 2/3 x 4/5
Divide: 2/3 รท 4/5
8/15 5/6
Solve for x:
x = 12
List at least 5 types of angles (other than obtuse and acute)
Vertical, angles on a line, angles on a point, supplementary, complementary angles, right angles, adjacent angles, etc.
You're at the store and see a sale for 40% off shirts. The original price of the shirt you want is $5.60. What is the sale price?
$3.36