Question

1.The temperature was 80∘F and then fell 20∘F. 2.The temperature was -13∘F and then rose 9∘F. 3.The temperature was -5∘F and then fell 8∘F.

Answer 1

If your looking for the ending temperatures on each one here they are in Celsius and Fahrenheit!

1. 60°F or 15.6°C

2. -4°F or -20°C

3. -13°F or -26°C

Answer 2

Answer:

The initial temperature is 80 °F.

The final termperature is 20°F.

During this period, fell 60 °F which represents a percentage of

$\frac{60}{80} \times 100= 75\%$

We repeat the process for the rest.

From -13 °F to 9 °F, the temperature arose 22 °F, which is equivalent to

$\frac{22}{13} \times 100= 169.23 \%$

From -5 °F to 8 °F, the temperature fell 13 °F, which is equivalent to

$\frac{13}{5} \times 100= 260 \%$