A pail, when holding 40 washers, weighs 500 grams. The

fumefluosault7pa

fumefluosault7pa

Answered question

2022-02-10

A pail, when holding 40 washers, weighs 500 grams. The same pail holding 20 washers weighs 420 grams. How much does the pail weigh?

Answer & Explanation

Dzikowiec5wa

Dzikowiec5wa

Beginner2022-02-11Added 13 answers

Step 1 
If there are a certain number of washers, the total weight is:
TW=weight of pail+number of washers×weight of one washer 
Since we are aware that the pail weighs 500 grams with 40 washers, we can say:
500=weight of pail+40×weight of one washer 
and we also know that when there are 20 washers the total weight is 420 grams: 
420=weight of pail+20×weight of one washer 
To make this easier to work with, Im

glavninamvyw

glavninamvyw

Beginner2022-02-12Added 11 answers

Step 1
Determine the weight of 20 washers
Subtraction gives:
weight of Pail+weight of 40 washers=500 grams
weight of Pail+weight of 20 washers=420 grams
0+weight of   20 washers=80 grams
Step 2
Determine the weight of the pail
weight of Pail+weight of 20 washers=420 grams
weight of Pail+80 grams=420 grams
Subtract 80 from both sides of the = gives
Weight of Pail =340 grams

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