March 2014: Birthdays, Survivor, Baking a pi, and the ice cream man

(from March 26, 2014)

"Odd Jobs"

7 does some freelance work...



(from March 21, 2014)

"Survivor"

The Odd one gets voted off the island first!




Find the weekly math comic at mathplane.com




(from March 17, 2014)

"Discount on a new shirt"

A department store is having a 30% off sale on all shirts. I find one that I like, so I go to the cashier and pay $25. He gives me $2.67 in change, and then I leave with my new rainbow shirt.

If sales tax is 10% of the final purchase price, what was the original (retail) price of the shirt?

Go here for the SOLUTION and more pre-algebra word problems



 (from Pi Day, 2014)

"Mixing it up"

 
 Want another slice of pi?  Visit the mathplane pi page...




(from March 11, 2014)

"Pythagorean Theorem and Perimeter"

 Quick math question: What is the perimeter of the triangle?

Solution and more math questions are here 






(from March 6, 2014)

"Ice Cream Man"

More mathplane comics posted at facebook, pinterest, and Google+....






(from March 2, 2014)

"Right Triangle Area Question"

What is the total (green) area inside the 2 triangles?

Read here for the solution.

Find more trig right angle questions at mathplane.com

February 2014: Roman History, Lottery, the Olympics, and romance

(from February 27, 2014)

"Math Comic CXXVII"

Caesar and an unruly class....


(from February 25, 2014)

Semi-circles and Perimeter"

Points M and P are the centers of the semi-circles.
What is the perimeter of the figure?

SOLUTION and more geometry questions







(February 20, 2014)

"Lottery"

It's a dream come true!






(February 18, 2014)

"Olympic Rings and Minor Arcs"

How many different minor arcs can you spot in the rings?

(NOTE:  the intersection of two rings creates a potential endpoint of an arc)

SOLUTION and more math questions







(From February 14, 2014)

"Math Romance"

A Valentine's Flower that lasts forever ... 

Make your own flower using the TI-Nspire with these directions...







(from February 8, 2014)

"Synchronized Swimming"

Chasing Olympic Dreams...





(From February 1, 2014)

How is your calculus, trigonometry, and algebra?

Step by step SOLUTION and more calculus questions at mathplane.com

January 2014: Gilligan's Island, Mr. Kite, Rubik's Cube, and Factorials

(from January 30, 2014)

"Geometry re-Construction"

 

(from January 24, 2014)

"Cast-aways"

A tribute to the Professor, Russell Johnson (1924 - 2014)

(from January 16, 2014)

"Surface area and thinking outside the box"

****Find more math cartoons in the webcomic gallery at mathplane.com

or, follow at facebook, google+, pinterest...

(from January 10th, 2014)

"Factorials!"

English grammar students try to learn factorials!

Here are 4 factorial questions:
1) For integers > 1, what is (n - 1)! / (n - 2)! ?
2) For integers > 1, what is (n + 1)! / (n - 1)! ?
3) What is 6! 5! / 4! 3! ?
4) What are the last three digits of 20! ?

Factorial SOLUTIONS

and, more math topics... 

 (from January 1, 2014)

"2 - 0 - 1 - 4 "

A math exercise:  

 Using 2, 0, 1, 4 and any combination of math symbols/operations/functions, write equations that compute to every number between 1 and 25.

(***for an extra challenge, try the same for 26 - 50)

 Hints and a set of solutions are in the destinations gate

 

December 2013: Rorschach Test, Scared Straight, Christmas, and New Year

(from December 31, 2013)

"2-0-1-4"

A New year:  Time marches on!



(from December 25, 2013)

"12's Day of Christmas" 

 
 Happy Holidays!


(from December 22, 2013)

"Geometry Polygon Question" 

Can you answer this Geometry Polygon Question?
What is the name of the regular polygon whose ratio of interior angle measure to exterior angle measure is 4:1?

 ANSWER
 


Find more Geometry Questions and Math Comics at mathplane.com 




(from December 19, 2013)

"Related Rates" 

(from December 12, 2013)

"Scared Straight"

 
 A tribute to the 1978 documentary narrated by Peter Falk...



(from December 9, 2013)

"Rorschach Test"

 
 (from December 3, 2013)

"Emigration, USA"

One Minute Math Question
In January 1923, 79,000 residents lived in Emigration, USA. Each year, 1/3 of the population would leave. (Assuming no births, deaths, or immigrants,) what year did the population eventually fall to under 100 residents?

The ANSWER and more decay and growth questions are at mathplane.com

 
 
 

 

November 2013: Snow White, Happy Days, and Bingo

(from November 20, 2013)

"Binary Bingo"

Visit the mathplane comic archives




(from November 26, 2013)

"Repeating decimal subtraction"

One minute math question:

Solution and more math stuff in the spare parts section





(from November 22, 2013)

"Happy Days"

The Fonz learns Calculus!




(from November 14, 2013)

"Snow White and the 7 Dwarf"

'Counting 7's'
1) If you listed all the whole numbers between 1 and 1000, how many 7's would appear in the list?
2) How many integers between 1 and 1000 contain at least one 7?

SOLUTION





(from November 7, 2013)

"Study Habits"

Academic influences from Angel and Devil...





(from November 1, 2013)

"Leftover Halloween Candy"

AFTER a 30% discount, a bag of Halloween Candy costs $10.
What was the ORIGINAL price of the candy?

The answer is here 

 
 

 

October 2013: Insomnia, The Infinite Monkey Theorem, Identity Theft, The National Debt, and Elm Street

(from October 30, 2013)

"Freddy Krueger's Math"

Happy Halloween!!




(from October 27, 2013)

"Hoops Percentage"

After 100 free throw attempts, my shooting percentage is 70%.
How many shots in a row would I have to make to increase my percentage to OVER 80%?

How many shots in a row would I have to miss to decrease my percentage to UNDER 60%?

Solutions and more math questions at mathplane.com




(from October 23, 2013)

"Broken Math"

National Debt Limit is not 17 trillion. It does not exist!





(from October 21, 2013)

"Three Easy Questions"

1) What is 1 divided by one-half?
2) On a number line, what is the midpoint between 1/3 and 1/5?

3) You and 5 friends go on a $1500 vacation. How much is the cost per person?

The Solution and more math topics in the spare parts section at mathplane.com





(from October 17, 2013)

"Identity Matrix"

Find more math cartoons at mathplane.com



(from October 12, 2013)

Answer and more geometry questions




(from October 10, 2013)

"Infinite Monkey Theorem"

"If 1000 monkeys, using 1000 graphing calculators, randomly hit keys for an infinite amount of time, then it will most surely produce the desired scatterplot".





(from October 3, 2013)

"Counting Sheep"

How mathematicians fall asleep....

September 2013: Football betting, Eye Chart, NASCAR, and Password

(from September 30, 2013)

"Radical Pythagorean Theorem"

'One minute math question':  What is the length of x?

Solution is in the spare parts section at mathplane.com




(from September 26, 2013)

"Super Natural Number"

Password and contestant's 6th sense...


(from September 24, 2013)

"Finding the minimum in a quadratic"

For the function f(x) = 9(x - 8)(x - 2),


what is the minimum output?

ANSWER





(from September 19, 2013)

"Accelerated Math"

Driven Students at NASCAR




(from September 13, 2013)

"Family Eunion"

Find more math comics at mathplane.com

Or, follow at Facebook, Google+, or Pinterest





(from September 10, 2013)

"Sequences containing variables"

Can you solve these 2 questions involving progressions (sequences) with variables?

1) For some real number t, the first 3 terms of an arithmetic sequence are 3t, 4t + 2, and 7t - 4. What is the numerical value of the 4th term?

2) For some positive real number b, the first 3 terms of a geometric progression (sequence) are b - 1, b + 4, and 3b + 2. What is the numerical value of the 4th term?

SOLUTIONS





(from September 5, 2013)

"Negated Football Logic"

Are you ready for some football!?!!