Multiply −1.7 by 2 1/2 . Write the answer as a mixed number in simplest form.(1 point)

Responses

−414
negative 4 Start Fraction 1 over 4 End Fraction

−234100
negative 2 Start Fraction 34 over 100 End Fraction

−4520
negative 4 Start Fraction 5 over 20 End Fraction

−174

1 answer

To multiply \(-1.7\) by \(2 \frac{1}{2}\), we first convert \(2 \frac{1}{2}\) to an improper fraction.

\[ 2 \frac{1}{2} = 2 + \frac{1}{2} = \frac{4}{2} + \frac{1}{2} = \frac{5}{2} \]

Now we multiply \(-1.7\) by \(\frac{5}{2}\):

First, convert \(-1.7\) to a fraction:

\[ -1.7 = -\frac{17}{10} \]

Now multiply the two fractions:

\[ -\frac{17}{10} \times \frac{5}{2} = -\frac{17 \times 5}{10 \times 2} = -\frac{85}{20} \]

Next, we simplify \(-\frac{85}{20}\):

Both 85 and 20 can be divided by 5:

\[ -\frac{85 \div 5}{20 \div 5} = -\frac{17}{4} \]

Now, convert \(-\frac{17}{4}\) to a mixed number:

To convert \(-\frac{17}{4}\) to a mixed number, divide:

17 divided by 4 is 4 with a remainder of 1, so:

\[ -\frac{17}{4} = -4 \frac{1}{4} \]

Thus, the answer in simplest form is:

\[ \text{negative } 4 \frac{1}{4} \]

The correct response is:

negative 4 Start Fraction 1 over 4 End Fraction