## Tuesday, November 20, 2007

### Chantel's Scribepost

The Pennsylvannia Turnpike Investigation
We are doing an investigation involving Maria and her drive to Lance's and Alicia's house. There is three questions we had to answer.
1. How many gallons of gas and what fraction of a full tank of gas did Maria use on the turnpike driving from her house to Lance's house?
2. What fraction of a full tank of gas did she use on the turnpike drving the combined distance from her house to Lance's to Alicia's.
3. How much time will she spend driving on the turnpike when she drives back home to Philadelphia?
Here Is Some Info That We Got On The Work Sheet
-33 miles per gallon
-15-gallon gas tank
-Gets on at mile marker 352
-She then exits on mile marker 242
-She has now been on the road for 1 hour and 40 minutes
-Now she drives from Lance's to Alicia's
-She now exits and mile marker 55

1.

We took 352 (the mile marker she ghets on the road) and subtracted 242 ( The mile marker she got off). We then got 110. We then had to see how mant 33's would go into 110. We did that because 33=1 gallon.

MileGallon

-----------

33 1

66 2

99 3
Then we subtrated 110 by 99 ( beacuase 99 is the closet thing to 100). Then we 11. 33 is one gallon so 11 is 1/3 of a gallon.So She Used 3/15 and 1/3 of a gallon.

2. For number 2 we went 242 ( The mile marker she got on) and subtratced that by 55. We then got 187.

MileGallon

-----------

33 1

66 2

99 3

132 4

165 5

Then we took 187 subtracted it by 165 and we got 22. Since 11 is 1/3 of 33 therefore 22 is 2/3 of 33.

Thats all we did.

But I read over the question and it says that What fraction of the full tank of the gas did she use on the turnpike driving the combined distance from her house to Lance's to Alicia's?

So we have to now add 3/15 & 1/3 +5/15 & 2/3

So 1/3 +2/3 = one whole

Then i go 3/15+5/15 which equals 8/15but we have to add the whole there fore it would be 9/15

So she used 9/15 from her house to Lance's To Alicia's

3. Ohkay well I really didn't understand what we did for number three.

I really don't kno whow to explain it.

♥.:;Chantel;:.♥

~xoxo~xoxo~