Price vs. Absorbency

Post on 22-Jun-2015

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Math- 7th Grade Project- by Kari Savoie and Ben Show

Transcript of Price vs. Absorbency

PRICE VS. ABSORBENCY OF PAPER TOWELS

By Kari Savoie and Ben Show

MATERIALSEyedropper

Water

iPad

Pyrex

6 Paper Towel Brands

PAPER TOWEL BRANDS

Bounty

Brawny

Viva

Scott

Basic

Thirsty

PROCEDURE1. We folded the paper towel into

a square.2. We filled an eyedropper with

tablespoon full of water.3. We dropped the water on the

corner of the paper towel square.

4. Record5. Repeat

BOUNTY RESULTS$2.99 for 1 roll

52 sheets per roll

6 cents per sheet

Made a circle with the diameter of 11 centimeters

BRAWNY RESULTS

$1.99 for 1 roll

88 sheets per roll

3 cents per roll

Made a circle of 9.5 centimeters

VIVA RESULTS$1.63 for 1 roll

88 sheets per roll

2 cents per sheet

Made a circle with the diameter of 7 centimeters

SCOTT RESULTS$1.99 for 1 roll

102 sheets per roll

1 cent per sheet

Made a circle of 11.5 centimeters

BASIC RESULTS

$1.49 for 1 roll

48 sheets per roll

4 cents per sheet

Made a circle of 13.5 centimeters

THIRSTY RESULTS

$1.59 for 1 roll

75 sheets per roll

2 cents per sheet

Made a circle of 11.5 centimeters

RESULTS

Bounty Brawny Viva Scott Basic Thirsty

The relationship is linear because both the diameter and the unit vary constantly, except for Scott.

RESULTS PART 2

Bounty Brawny Viva Scott Basic Thirsty

The relationship of the two lines are not linear because the unit prices are very similar for all brands.

Advice for Shoppers!

Scott is the best value

brand because it has the

lowest unit price of one

cent. Also, it is tied for the

second highest diameter and

area of absorbency.