Tuesday, May 23, 2006

Growing Post #2

Question #1: Solve all 3 parts of the problem below

Jack collects baseball cards. Jack has 180 baseball cards in his collection. At the end of each month Jack buys 25 baseball cards to add to his collection.
a) Create a T-Chart showing how many baseball cards Jack has at the end of the next 4 months.


b) Create an algebraic formula based upon the problem above

Formula - 180 + 25n =

"n" is the variable used to represent the cards

c) If jack just turned 8 years old this month and Jack continues to buy the same amount of Baseball cards each month how many baseball cards will Jack have when He turns 12.

180 + 25n =

180 + 25(48) =

180 + 1200 = 1380 baseball cards

180 = how many cards he has

25 = how much it raises by

48 = the 4 years... Jack is 8 years old and he continues to get the same amount of baseball cards each month until he's 12. You subtract 8 from 12 and you get 4. Since a year has 12 months you multiply the 4 years by 12 months and you get 48 months.

Answer : Jack will have 1380 baseball cards when he turns 12.

Question #2: Use the chart to figure out the questions below.

Jackie Is planning on having a pizza party with osme of her friends. She is trying to figure out how many pizza's to order. She knows that each pizza has six slices of pizza.

a) If Jackie thinks that there will be four people at the party (counting herself) how many pizza's should she order?

Since Jackie thinks 4 people will be at the party (including herself). 4 people will have 12 slices of pizza, and 1 pizza has six slices of pizza. So Jackie will have 2 Pizza's. 2 pizza's have 12 slices of pizza all together. There is 12 slices of pizza and 4 people... 12 divided by 4 is 3, so each person will have 3 slices of pizza. Jackie should order 2 pizza's.

b) If two more people show up at the party how many more pizza's does she need to order?

If 2 more people show up, you'll have 6 people. The chart says that 6 people will have 18 slices of pizza. Every pizza has 6 slices of pizza. So you'll need 3 pizza's which will have 18 slices of pizza all together. There's 18 slices of people and 6 people... 18 divided by 6 is 3, so each person will have 3 slices of pizza. Jackie should order 3 pizza's.

Question #3: Answer the questions below based upon this information.

Kathy has $20 in her savings account. Each month she adds another $15 to her savings account. In order to calculate how uch money she will have in one year Kathy has created this algebraic formula: 20 + 15n = Savings amount

a) Calculate how much money Kathy will have in one year

20 + 15n =

20 + 15(12) =

20 + 180 = $200 dollars in her savings account

Since 1 year has 12 months... the number in brackets is "12"

Answer : Kathy will have $200 in her savings account in a year

b) Suppose Kathy counted wrong and she really has $25 in her account instead of $20. Change the algebraic fomula to reflect this miscalculation.

25 + 15n =

25 + 15(12) =

25 + 180 = 205

Answer : Kathy will have $205 in her savings account in a year




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2 Comments:

At 3:04 PM, Blogger Mr. Reece said...

great post toucansam, only change is what is "n" in 1b?

 
At 1:08 PM, Blogger Mr. Reece said...

Your mark is 16/17

 

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