Question

Which of the following shows the correct process of solving −30+4.5 ?(1 point) Responses −30+4.5=−3+4.5=1.5 negative 3 superscript 0 baseline plus 4.5 equals negative 3 plus 4.5 equals 1.5 −30+4.5=−1⋅30+4.5=−1⋅1+4.5=−1+4.5=3.5 negative 3 superscript 0 baseline plus 4.5 equals negative 1 times 3 superscript 0 baseline plus 4.5 equals negative 1 dot 1 plus 4.5 equals negative 1 plus 4.5 equals 3.5 −30+4.5=(−3)0+4.5=1+4.5=5.5 negative 3 superscript 0 baseline plus 4.5 equals left parenthesis negative 3 right parenthesis superscript 0 baseline plus 4.5 equals 1 plus 4.5 equals 5.5 −30+4.5=−3⋅0+4.5=0+4.5=4.5

Answer 1

To solve the expression \(-30 + 4.5\), we start by recognizing that \(-30\) is the same as \(-3 \cdot 10\). However, in terms of simplifying \(-30 + 4.5\) directly, we can just add \(-30\) and \(4.5\) as follows:

\[ -30 + 4.5 = -25.5 \]

None of the provided processes in your question accurately describe this computation correctly.

However, if we consider what they do propose:

1. \(-30 + 4.5 = -3 + 4.5 = 1.5\) - This is incorrect.
2. \(-30 + 4.5 = -1 \cdot 30 + 4.5 = -1 \cdot 1 + 4.5 = -1 + 4.5 = 3.5\) - This is incorrect.
3. \(-30 + 4.5 = (-3)^0 + 4.5 = 1 + 4.5 = 5.5\) - This is incorrect.
4. \(-30 + 4.5 = -3 \cdot 0 + 4.5 = 0 + 4.5 = 4.5\) - This is incorrect.

None of these show the correct process to solve \(-30 + 4.5\). The correct answer would be \(-25.5\).