Answer:
5,000+6,000+7,000+,9,000+6,000+5,000= 38,000
Step-by-step explanation:
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
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54:450*100 =
(54*100):450 =
5400:450 = 12
Answer: Jacki did not subtract 12 from 8 correctly
Step-by-step explanation: it should be -4