Question

What was Weston’s error?

In Step 2, the second fraction should have been out of a multiple of 40.

In Step 2, the multiplication relationship shown should have been division.

In Step 4, the decimal should not have been moved.

In Step 4, the decimal should have been moved two places instead of one.

Answer 1

Check the picture below.

Answer 2

`(2.5)/(100)=0.025\:or\:2.5\%`

Explanation:

In step 4.

Weston made a mistake when he divided 2.5 by 100. He wrote it as he had multiplied 2.5 by 10 instead of moving the point back two decimals places to the left.

In the Step 4:

`(2.5)/(100)= 0.025\:or\:2.5\:\%`

This can be verified by dividing 1 over 40, that'll give us 0.025