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timofeeve [1]
3 years ago
6

Simplify the expression-2.3 + (-5.7). On the test when maureen simplified the expression she got -3.4. What mistake did maureen

likely make when she simplified the expression
-2.3 + (-5.7) =
Mathematics
2 answers:
maxonik [38]3 years ago
7 0

Answer:

-8.

Step-by-step explanation:

How it is that

first the signs will change from -2.3 plus (-5.7)  to -2.3 - 5.7

then since both signs are negative

and the rule is

negative negative Positive so we will plus our numbers and when we plus our answer will be 8.

Since -5.7 is the largest number and it's sign is negative it's sign will also be negative making it -8

So answer is -8

Hoochie [10]3 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

- 2.3 + (- 5.7)

reminder that + (- ) = -

To obtain - 3.4 it is likely that she added 2.3 to - 5.7

The solution is

- 2.3 - 5.7 = - 8

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