## Tuesday, October 30, 2007

GED Math Help: percents

To rent a hall for a party reception (for 1 evening) costs \$225. The Hall is also charging \$25.50 per adult and \$19.95 per child for the meal and reception. Gratuity is 15% of total costs. If 125 adults and 32 children attending the party, what is the total cost.... including gratuity?

Answer: Set up the problem as follows:

First part: (cost of hall + (cost of adult meal)(number of adults attending)+ (cost of child meal)(number of children attending)
Second part: 15% of (cost of hall + (cost of adult meal)(number of adults attending)+ (cost of child meal)(number of children attending)
.
Find the answers to part one and two, and then add them together.
.
Part one- hall and meals: \$225 + (125 x \$25.50) + (32 x \$19.95) = \$4050.90.
Part two- gratutity: .15 x \$4050.90 = \$607.34
.
Total cost: \$4050.90 + \$607.34 = \$4658.24

Have you recently held a reception? How did you calculate costs?

## Monday, September 10, 2007

Did you know.....

• is, is equal to, equals, the same MEANS =
• of, the product, times, multiple, multiplied by MEANS x or ∙
• add, more than, plus, sum, increased by, added to, more MEANS +
• subtract, less than, minus, difference, decreased by, less MEANS -
• divide, divided by, the quotient MEANS ÷
• double, twice, twice as much MEANS 2x or 2 ∙
• half, half of, half as much MEANS ½ x or ½ ∙

A great math dictionary to use for preparing for the GED test is Usborne Illustrated Math Dictionary. It is a great bargain and less than \$15.

## Wednesday, August 01, 2007

GED Skill: Simple Interest

Pamela is taking out a car loan for \$12,500 at 6.75% interest for 7 years. How much interest will she pay and how much will her monthly payments be ?
Answer: To find out how much interest Pamela will pay, use the simple interest formula of principal x interest x time: \$12,000 x .0675 x 7 = \$5670. WOW that's a lot!

To find out how much her monthly payments will be, add the principal and interest (\$12,000 + \$5670 = \$17,670) and divide it by the total months (12 months x 7 years = 84). Finally, divide \$17,670 and 84. The monthly payment will be \$210.36.

## Friday, July 27, 2007

GED Skill: geometry

Dan is planning on on re carpeting his master bedroom, measuring 15ft by 25ft. He is looking at carpeting which costs \$9 per square yard. He also has a budget of \$300. Assuming that there will be a 10% waste, will Dan have enough money. If not, how much short is he?

Answer: Dan does not have enough money. He is short by about \$112.5

## Monday, July 23, 2007

GED Book Sale

I don't usually do this, but this is such a great deal, that I wanted you to know about this GREAT GED sale that I am having. Check out this link to find out about GED books for \$5 or less! If you are tutoring students, or you are currently studying for your GED, then this may be the sale for you.

You may wonder why I am reducing inventory. I am getting rid of some of my GED books because I plan on bringing in other GED materials and I need the space!

For a great deal, check out Super Savings on GED Books.
Percents: GED Skill

Karen bought a new sweater for 20% off the original price. If the original price was \$49.99 and sales tax is 5.5%, how much did Karen spend on her new sweater?

Answer: First you need to find the actual cost of the sweater (original price minus the 20% off). Take \$49.99 x .2 which equals \$9.99. \$49.99 - \$9.99= \$40.00 (cost of sweater on sale). Second you need to calculate sales tax (5.5%) on \$40.00. Take \$40.00 x .055 which equals \$2.20.

Finally, you need to add the cost of the sweater, \$40.00, and the cost of the sales tax, \$2.20 together. \$40.00 + \$2.20 = \$42.20

There are other ways to also solve this problem. Leave a comment on how YOU would solve this problem.

## Saturday, July 14, 2007

GED Math Skill: estimating

Sharon is planning a graduation meal for her son. She plans on serving ham. The butcher told her that she should figure 1/2 pound per person. If there will be 67 people at the party, about how big (pounds) should the ham be?

answer: 67 x 1/2 = 33 1/2
about how many indicated estimation, so to be on the safe side, Sharon should get at least 34 pounds.

## Wednesday, June 27, 2007

GED Skill: Add fractions with common denominators

The Smith family is having a party with 11 guests. They are serving 1/4 lb. burgers. If the average is 1 1/2 burgers per guest, how many pounds of hamburger should be bought?
GED Skill: percents

75% of the third grade passed their spelling test. If there are 24 children in the third grade, how many did not pass the spelling test?

answer: 6 children did not pass the spelling test.

## Wednesday, June 13, 2007

GED Skill: Multi Step Problem

Dan decided to landscape the outside of his home and ordered 5 cubic yards of red cedar mulch. Each cubic yard cost \$35. In addition he was charged a \$35 delivery charge because he was outside the city limits. What was the total cost, including 5.5% sales tax (delivery charge is subject to sales tax).

Answer: Dan will be charged (5 x \$35)cost of mulch, plus a \$35 delivery charge for a total of \$210. Sales tax is calculated at .055 x \$210, which is \$11.55. The grand total cost for the order is \$221.55.

## Thursday, June 07, 2007

GED Skill Area: Dividing by One-Digit Numbers

Question: An organization collected 140 presents that will be given equally to 7 children. How many presents will each child receive?