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Chapter 2: Q. 2.101 (page 56)

Bill's recipe for onion soup calls for 4.0lb of thinly sliced onions. If an onion has an average mass of 115g, how many onions does Bill need? (2.6)

Short Answer

Expert verified

Bill needs a total of 16onions when the average mass of onions is 115g

Step by step solution

01

Introduction 

The given is the weight required for Bill for his onion soup

The objective is to determine the number of onions purchased by Bill

02

Step 1

Given,

Onion mass average is =115g

The total amount of onion needed to make onion soup =4.0lb

Conversion factor:-

1lb=454gm

The total amount of onion needed to make onion soup is,

4.01b脳454gm1lb=18614gm
03

Step 2

To make onion soup, you'll need a certain number of onions =Total mass of onion requiredAverage mass of onion

=18614gm脳1115gm

=16 onions (Rounding off two significant figures)

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