Formulas!
What's wrong with this?
Equations
Rates
Vocabulary
100

What is the formula to find the area of a rectangle?

A= l x w 

100

They added the denominator when they are only supposed to add the numerator. 

100

y - 2 = 9

What does y equal?

y = 11

100

Ms. Louis drives 840 miles in 12 hours. How many miles does she drive each hour? 

70 miles per hour

100

What word means...

the value that occurs most frequently in a given set of data.

mode

200

What is the formula to find the area of a circle? 

A= pi x r squared 

200

6= 12

What's wrong with this and what is the correct answer? 

They added 6 + 6 instead of doing 6 x 6 which is 36. 

200

s + 13 = 25

s = 12

200

The Uplift Elevate cafeteria serves 1000 lunches every week. How many lunches does it serve on each SCHOOL day? 

200 lunches

200

What word means...

a letter or symbol that represents an unknown quantity

variable

300

What is the formula to find the circumference of a circle? 

C = pi times diameter

300

x + 3 = 7 

   + 3   +3

__________

x = 10 

What is wrong with this and what is the correct answer? 

They added 3 when they were supposed to subtract 3 so x = 4. 

300

e/4 = 3 

e = 12

300

If Muriel can drink 4 coffees in 1 hour, how many can she drink in 2 and a half hours?

10 coffees

300

What word means...

the line on a graph that runs vertically (up-down) through zero

y-axis

400

What is the formula to find the area of a triangle? 

A= 1/2 bh

400

x pages   =      15 minutes

_______           __________

1 minute           50 pages

What is wrong with this proportion? 

How should it look? 

x pages   =     50 pages

_______           __________

1 minute           15 minutes 


They did not line up the units

400

5r - 2 = 13

r = 3 

400

How many miles did the hiker hike in 5 hours? 

6 miles

400

What word means...

the median of the lower half of an ordered set

lower quartile

500

What is the percent proportion? 

%/ 100 = is/of 


%/100 = part/whole

500

Muriel thinks the range is 10. Why is she wrong (again!) 

She subtracted the highest and lowest numbers on the number line instead of the highest and lowest numbers with dots. 

500

2(n-10) = 40

n = 30

500

The after school concession stand makes $125 dollars every week. How many weeks would it take them to make $875? 

7 weeks

500

What word means...

the likelihood that a specific event will occur (how many times an event SHOULD occur)

theoretical probability