# Frigid Forecast

## Solution

Monday: ^{+}7°F

Tuesday: ^{+}22°F

Wednesday: ^{+}2°F

Thursday: ^{-}5°F

Friday: ^{-}4°F

Saturday: ^{+}1°F

## Explanation

- Tuesday was the warmest day of the week, but still was only 10 degrees below freezing.

Freezing is 32° Fahrenheit.

32°F − 10°F = 22° F

Tuesday's temperature was 22° F.

That was 15°F warmer than the day before.

Tuesday was 15°F warmer than Monday.

Monday's temperature + 15°F = Tuesday's temperature.

Subtract 15°F from Tuesday's temperature to find the warmer temperature for Monday:

22°F − 15°F =^{+}7°F

Monday's temperature was^{+}7°F. - On Wednesday the temperature was 5°F colder than on Monday.

Start with Monday's temperature and subtract:^{+}7°F − 5°F =^{+}2°F

Wednesday was^{+}2°F. - Thursday was even 1°F colder than Friday.

Skip this clue now and find out Friday's temperature. - Friday's temperature was 6°F below Wednesday's.

Wednesday's temperature was^{+}2°F.

Subtract:^{+}2°F − 6°F =^{-}4°F - Now go back to find Thursday's temperature:

Friday's temperature was^{−}4°F.

Thursday was 1°F colder than Friday.

So, subtract:

^{-}4°F − 1°F =^{-}5°F

Thursday's temperature was^{-}5°F. - It was 5°F warmer on Saturday than on Friday.

Add:

Friday's temperature plus the increase:^{−}4°F + 5°F:

^{-}4°F + 5°F =^{+}1°F

Saturday's temperature was^{+}1°F.