In January, the average high temperature for Calgary is 9.9 °C greater than Winnipeg’s average high temperature. The sum of these two temperatures is

UkusakazaL

UkusakazaL

Answered question

2021-06-08

In January, the average high temperature for Calgary is 9.9C greater than Winnipeg’s average high temperature. The sum of these two temperatures is 15.5C. What is the average high temperature in January for each of these two cities?

Answer & Explanation

Luvottoq

Luvottoq

Skilled2021-06-09Added 95 answers

c=calgary

w=winnipeg
The two equations would be: c=w+9.9 (as the weather in Calgary is 9.9 degrees warmer than Winnipeg) and 15.5=w+c (as the sum of the two temperatures is -15.5 degrees)

We already have the C value (C=w+9.9) so we can plug that into the other equation, as 15.5=w+(w+9.9), which would be: 15.5=2w+9.9 simplified,

then 25.4=2w and finally w=12.7.

Putting that value into the other equation as 15.5=12.7+c, 15.5+12.7=2.8, therefore c=2.8

Answer: w=12.7c=2.8

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