Question

Which of the following expressions are equivalent to 6.53 - (-4.11) + 7.926.53?

Answer 1

Answer:

Choice B and Choise C.

Step-by-step explanation:

Equivalent expressions are those expressions that have the same value but they look different.

Given the following expression provided in the exercise:

$6.53 - (-4.11) + 7.92$

You need to remember the multiplication of signs in order to find the equivalent expressions:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-$

Then:

- Eliminating the parentheses, you get this equivalent expression:

$6.53 +4.11 + 7.92$

- Since the mulplication of two negative signs gives yous a positive sign, you can rewrite the original expression in this form:

$-(-6.53)+4.11-(-7.92)$

This is an equivalent expression to $6.53 - (-4.11) + 7.92$