Math Vocab
Equations
Random Riddles
Percent
Conversion Factors and Proportions
100

What is the distance a number is from zero on the number line?



Absolute Value

100

-4x-2=2x-2+(x+100)/4

-4

100

What can be touched but can't be seen?

Someone's heart

100

What percent of 32 is 40?

125%

100

2 qt/min = _____ gal/s

1/120 gal per second


200

If you are filling a swimming pool with water, what will you be solving for to find the amount of water in the pool?





Volume

200

fx-gx = h

Solve for x

x=h/f-g

200

What must be broken before it can be used?

An egg

A glowstick

200

160% of what number is 200?

125

200

75 cents/h = ________ dollars/day

$18/day

300

What is the name for these mathematical symbols?  

> and < 

Inequalities


300

(x-4)/6=5/4

11.5

300

You have two U.S. coins whose total value is $0.30. One of them is not a nickel ($0.05). What are the two coins?

One is a quarter and one is a nickel.

300

A beauty salon buys bottle of styling gel for $4.50 per bottle and marks up the price by 40%.  For what price does the salon sell each bottle?

$6.30

300

60ft/s = ______ km/h

Round to the nearest tenth

about 65.9 km per h


400

A trapezoid has 2 sets of parallel sides.  True or False

False

400

What is the maximum number of times you can subtract number 5 from 25?

Only once. 

After you subtract 5 the first time, it becomes the number 20, and then 15, and so on. 

400

An employee was hired at a wage of $8 per hour.  After a raise, the employee earned $8.75 per hour.  What was the percent increase?  Round to the nearest percent if necessary.

about 9%

400

Solve the proportion.

w2 + 3 = w

_____     __

2w+2      2

3

500

What type of equation, when solved, has a solution "infinitely many solutions"?

identity

500

2(5-2x)=-5(x-5)

x=15

500

What number goes up and doesn't come back down?

Your age

500

You estimate that your friend's brother is about 8 years old.  He is actually 6.5 years old.  Find the percent error.  Round to the nearest percent.

about 23%

500

Solve the proportion.  

 5x       =       5

_____            ____

x3+5             x2-7

-5/7