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"

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(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!?!!

August 2013: 1/2, burning ropes, architects, radical, back to school, and linear regression

(from August 29, 2013)

"Linear Regression"

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(from August 22, 2013)

"School Supplies"

Ready for Class!!





(from August 15, 2013)

"It's a Rad, Rad, Rad, Rad, World"

Inspired from the classic "It's a mad, mad, mad, mad world (1963).....


Here is a radical puzzle:

SOLUTIONS are in the spare parts section at Mathplane.com





(from August 9, 2013)

"Building Materials"

Working with an Arc-itect...




(from August 8, 2013)

"Burning ropes and measuring time"

Suppose you have a box of matches and ropes of different lengths. EACH rope takes EXACTLY ONE HOUR to burn through.

Using logic, you could use the ropes to measure units of time. For example, to measure 30 minutes, you could light each end of a rope simultaneously. (because the burning ends meet halfway after 30 minutes.)

Question: How could you measure 45 minutes?


Here is the answer:





(from August 1, 2013)

"Definition of 1/2"

This comic isn't half bad!!

July 2013: Dance Lessons, Hitchcock, Movie Script, and the SAT in Hell

(from July 30, 2013)

"SAT in Hell"

Well, I'll be damned!  That's a tough test...

 

SOLUTIONS to this test are in the spare parts section...

(From July 20, 2013)

"Movie Projection"

The Math Guy pitches his geometry movie idea:  "The 3-way", featuring a love triangle...

6 more triangle questions:

1) What is the name of a triangle where all sides have different lengths?
2) A triangle has sides of length 8 and 13. What are the possible lengths of the 3rd side?
3) Two sides of an isosceles triangle are 5 and 7 feet. What is the perimeter of the triangle?
4) DEF is a right triangle. If angle E is 37 degrees, what are the measures of D and F?
5) Where do the altitudes of a right triangle intersect?
6) If the 3 altitudes of triangle ABC intersect outside the triangle, what type of triangle is ABC


SOLUTIONS and more triangle content are at mathplane.com 



(from July 13, 2013)

"Hitchcock's 39 Steps Function"

 math comic #94:  Alfred Hitchcock presents...



(from July 4, 2013)

"Dance Lessons" 

 At Murray Arthur's Dance Studio...


Can you complete these sequences?

 Solutions and more about sequences....




(from July 1, 2013)

"44"

Can you solve these 4 math problems about 44?
1) List all the factors of 44
2) Express 44 in Roman Numerals
3) Write 44 in Base 5
4) ("The Enforcer" was made in 1976) Using each number 1, 9, 7, and 6 and any math symbols and/or operations, write an equation that equals 44.

Answers in the spare parts section...



 

June 2013: Ellery Queen, Twitter, Frankestein, and Dirty Harry

(from June 27, 2013)

"The Enforcer"

 

Harry Callahan teaches math at Eastwood Prep

(from June 21, 2013)

"Teaching Experiment"

A monstrous task for Dr. Frank N. Stein

Find the weekly math comic at mathplane.com

or, follow at Facebook, Google+, and Pinterest

(from June 13, 2013)

"Two Characters and a Tweet"

(from June 9, 2013)

"Ellery's Cousin"

Can you solve the "case of the 3 portions"?

visit the spare parts to see the solution

(from June 5, 2013)

"Recreation Area"

Math Quiz:  Three Area problems...  (a little bit of geometry and calculus)

 The solutions and more math questions....

 

 

May 2013: Fibonacci, Clocks, Math Junkies, Marathons, and Area Code

(From May 31, 2013)

"Area Code"

Find the weekly math comic at mathplane.com



(from May 24, 2013)

"Ultra-Marathon"

Red e, Set, Go!!



(from May 17, 2013)

"Doing Lines"

Math Junkies, just say know!


Check out Diagonals and Polygons in the spare parts section at mathplane.com






(from May 10, 2013)

Now, it's time for 3 clock angle questions!

1) What is the measure of the angle formed by the hands of a clock at 5:00?
2) What is the measure of the angle formed by the hands of a clock at 7:12?
3) Challenge:  If it is 12:02, when is the next time the minute hand will cross the hour hand?  (round your answer to the nearest second)..
(Note: the answer is not 1:05:00)

SOLUTIONS are here...





(from May 8, 2013)

"Fibonacci Day"

Next Wednesday is 5-8-13, a "Fibonacci Day" --- (assuming such a thing exists)... In honor of Leonardo of Pisa --- Fibonacci, the Mathplane weekly cartoon features his
sequences.....



How familiar are you with sequences?
Answer the following:
Assume 3 and 9 begin each sequence. What is the 3rd term in each:
a) Arithmetic sequence: 3, 9, ? ...
b) Geometric sequence: 3, 9, ? ...
c) Fibonacci sequence: 3, 9, ? ...

SOLUTIONS are here...

And, learn more about Sequences and Series.....