Solved: "The temperature outside dropped 13°F in 7 hours...."

Audrina Graham

Answered question

2023-01-05

The temperature outside dropped 13°F in 7 hours. The final temperature was -2°F. What was the starting temperature?

NalmIrralsedx8

Beginner2023-01-06Added 10 answers

Leaving the initial temperature alone I=x.
Final temperature

F = - 2^{\circ}

Change in temperature

C = I - F = x - (- 2) = {(x + 2)}^{\circ} F

But there has been a temperature change #C = 13^@F#
Then,

C = 13 = (x + 2)

You can't use 'macro parameter character #' in math mode

Jasmine Young

Beginner2023-01-07Added 2 answers

Without using algebra, here is another way to approach this problem:
We know that at the end of the time period, it's

- 2^{\circ}

F. At the beginning of the time period, it was

13^{\circ}

F warmer. We can therefore state that adding -2 and 13 will give the temperature at the start of the time period:

- 2 + 13 = 11^{\circ}

Do you have a similar question?

Recalculate according to your conditions!

Didn't find what you were looking for?