Friday, October 9, 2009

Ralphs Coin Math Oct 9 09 part 1 and 2




Todays assignment was to answer one purple and one of any other colour.




1.Would the jar look the same if it was Canadian money




The jar wouldn't be the same because there are pennies, nickels, dimes, and quarters in both Canada and America but, Canada also have loonies and toonies which are pretty big and can take up alot of space too.






2.What is the value of each type of coin in a jar.



On a website I found out that
Coin rollers contain the following:
50 x $0.01 = $ 0.50 = a penny roll

40 x $0.05 = $ 2.00 = a nickel roll
50 x $0.10 = $ 5.00 = a dime roll
40 x $0.25 = $10.00 = a quarter roll
25 x $1.00 = $25.00
25 x $2.00 = $50.00



So you could put :
80 rolls of pennies = $40.00
10 rolls of nickels = $20.00
4 roll of dimes = $20.00
2 roll of quarters = $ 20.00
= $100
Considering the fact that its American coins.

I hope that the answer is something on the lines of this chart.









"Coins Part 2"


Our part 2 of our coin math was an assignment.



1. a) Make a combination of USA coins



80 rolls of pennies = 4000 coins = $40.00

10 rolls of nickels = 400 coins =$20.00

4 roll of dimes = 200 coins =$20.00

2 roll of quarters = 80 coins = $ 20.00

= $100



b)Make a combination of Canadian coins

*Must use a roll of each coin.*



If Canadian coins are,



50 x $0.01 = $ 0.50

40 x $0.05 = $ 2.00

50 x $0.10 = $ 5.00

40 x $0.25 = $10.00

25 x $1.00 = $25.00

25 x $2.00 = $50.00



Then you could put



1 roll of toonies = $ 50 = 25 coins

1 roll of loonies = $ 25 = 25 coins

1 roll of quarters = $ 10 = 40 coins

1 roll of dimes = $ 5 = 50 coins

4 rolls of nickels = $ 8 = 120 coins

and 4 rolls of pennies = $2 =200 coins

= 100$ = 460 coins



2. How full is the jar?



If the jar was originally about 75 percent full

and there were about an estimate of 20 rolls or 1350 coins according to other classes work

According to my work, the jar would about 30% full and the jar also has 460 coins.



How can you use a ratio table?



If the information was put on a ratio table it could look like this:






I'm not sure if that's how you make the graph with the information so I just put information on the graph.



Thanks for reading my post!
Please leave a comment!

3 comments:

Mr. H said...

Smartee Pants!! Great job Ralph. What combinations are there for Canadian coins and what would that do to the jar?

gilbert817 said...

Great job Ralph! Your scribe was awesome. I like how you answered number two I was little confused when I read it but now I understand now. Great job again.

abby 8-73 said...

Good Job Ralph!! (:
I know im not from your room but mr. h said its ok. anyways, w0w Ralph, what an AWESOME scribe!! (: Keep up the great work!! (:

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