## Sunday, February 24, 2008

What is the volume, in cubic feet, of a rectangular solid that measures 4 feet long, 3 1/2 feet wide, and 2 feet high?

Solution: formula: volume = length x width x height
4 x 2 x 3 1/2 = 28 cubic feet

## Saturday, February 23, 2008

Solve for x.

3x + 6 -21 = 2x - 4

Solution: x = 10

## Sunday, February 17, 2008

Understanding how to arrange decimals is an important skill for the GED Math Student. Can you determine....

Which of the following decimals is the smallest?

4.0, 0.4. 4.4, -4.0, -0.4. -4.4

## Saturday, February 16, 2008

Anna works in a clothing store and receives a 20% employee discount. If Anna decides to buy a \$120 coat, what will her total cost be with 5.5% tax.

solution: In order to solve this problem you must first calculate Anna's 20% discount. Hint: Change the 20% into a decimal. Next, subtract the discount fromthe origional price, this gives you Anna's sale price. Calculate the sales tax, again by changing the percent into a decimal. Finally, add the sale price and sales tax together.

\$120 x .2 = \$24 (discount)
\$120 - \$24 = \$96
\$96 x .055 = \$5.28
\$96.00 + \$5.28 = \$101.28 (Anna's final cost)

## Sunday, February 10, 2008

The sixth line in Pascual's Triangle is 1, 5, 10, 10, 5, 1

Can you figure out the following pattern? 2,5,17....

The pattern is (number) x 4 - 3

## Thursday, February 07, 2008

Do you understand the number pattern for Pascual's Triangle? If you don't, you are not alone. Up until now, every time I saw it... I had to think about it. And then, I still may not have figured it out... or should I say remembered what the pattern was.

That is, up until now.

The pattern: Each number is just the two numbers above it, added together.

Can you figure out what the next row will be?