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Anna007 [38]
3 years ago
15

Ben is showing his work in simplifying (3.9 − 9.4) − 0.6 + 6.1. Identify any error in his work or reasoning.

Mathematics
2 answers:
tia_tia [17]3 years ago
6 0
the answer is 0.2 i think
Serjik [45]3 years ago
3 0

Answer:

Should have worked out brackets first then kept it to two subtractions (one being negative number total and the other being positive total number at step  3 ) taking you to step 4 as finish to just add the two numbers a( - 5.3)  + (5.5) = 0.2

Step-by-step explanation:

(3.9 − 9.4) − 0.6 + 6.1.  To simplify do brackets first so the first error was Step 2 line we show (3.9 − 9.4)− 0.6 + 6.1  below = to (-5 .3) − 0.6 + 6.1 Then to simplify Step 3 line there was a second error as 3.9 was never a simplification of the brackets and here is how it should be ( - 5.3)  − 0.6 + 6.1  = ( - 5.3)  + (5.5)  =   ( - 5.3)  + (5.5) Then to simplify Step 4 line we wont need a step 5 and are left to just add the two numbers ( - 5.3)  + (5.5) = 0.2

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