Question

A thermometer shows a temperature of Negative 20 and three-fourths degrees. A chemist recorded this temperature in her notebook using a decimal. Which number did the chemist write in the notebook?
Negative 21.ModifyingAbove 4 with bar
Negative 21.ModifyingAbove 3 with bar
Negative 20.75
Negative 20.34

Answer 1

Answer:

negative 21 Modifying-Above 4 with bar

Step-by-step explanation:

Answer 2

Given:

The a temperature of negative $20$ and $\frac{3}{4}$ degrees.

To find:

The number did not chemist the notebook.

Step-by-step explanation:

Based on the given conditions, formulate $-(20\frac{3}{4} )$

Convert the improper fraction into a mixed number

Calculate the product or quotient $\frac{-80+3}{4}$

The sum or difference $-\frac{83}{4}$

$=-20.75$

Answer:

Therefore, The number the chemist notebook in the Negative $20.75$.