What is the ratio of teachers to students in the classroom right now?
[Answer will vary]
100
What is the definition of a ratio?
A fraction that compares two things
200
4k = 28
k = 7
200
Solve for y
10 = y
30 42
y = 14
200
What is 36% of 40?
14.4 is 36% of 40
200
What is the ratio of cats to dogs in the picture?
2:3 or 2 cats to 3 dogs
200
List the two steps to find the solution to a discount problem.
Step one: Find the part
Step two: Subtract the part from the total
300
What is the opposite of division?
Multiplication
300
How do you solve a proportion?
Use cross-multiplication
300
65 is 38% of what?
65 is 38% of 171.05
300
Alejandra has a box full of donuts. Her friend gives her 4 more donuts. If Alejandra has 18 donuts, how many donuts were in the box?
14 donuts
300
What is the conversion factor between minutes and hours?
60 minutes = 1 hour
400
3x + 9 = 21
x = 4
400
Solve for x
25 = 40
30 x
x = 48
400
42 is what percent of 70?
42 is 60% of 70
400
Micah wants to buy a new car. The car he wants is $3500 but on sale for 25% off. How much will he pay?
$2625
400
What is the definition of a proportion?
A proportion is two ratios that are equal to each other
500
7b - 15 = -29
b = -2
500
Convert 5 miles to kilometers. Use the conversion ratio 1.6 kilometers = 1 mile.
8 kilometers
500
What is the proportion we use to solve all percents?
percent over 100 = part over total
500
Luka wants to buy a pretty necklace. There is a blue necklace that costs 18$ and is 35% off. There is a red necklace that costs 30$ and is 65% off. Which necklace should he buy?
Luka should buy the red necklace.
500
Explain how to solve the problem 4y + 16 = -4
First you subtract 16 from both sides, because subtraction is the opposite of addition. Then you divide both sides by 4, because division is the opposite of multiplication.