2.5 divided by 2 equals 1.25 so each side equals 1.25
For this case, the first thing we must do is define variables.
We have then:
x: number of minutes
y: final temperature
We write then the equation that models the problem:

For y = 20 we have:

Clearing x:
Answer:
The temperature of the water will be 20 degree celcius after 150 minutes
Answer:
Jerry would still be in debt by 7100
Step-by-step explanation:
Just subtract 8500 from 15600
Answer:
45
Step-by-step explanation:
To find the number you just add 6 to 39 which gets you 45.