2 years ago

Please help I don’t understand this math question

Mathematics

1 answer:

muminat2 years ago

7 0

Answer:

Step-by-step explanation: because when you are figuring out if it is that number it shold be the answer.

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A container contains water at temperature 80 degree celcius. After every 10 minutes, the change in temperature is - 4 degree cel

lilavasa [31]

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:
$y = (-4/10) x + 80
$
For y = 20 we have:
$20 = (-4/10) x + 80
$
Clearing x:
$(4/10) x = 80 - 20

x = (10/4) * 60

x = 150$
Answer:
The temperature of the water will be 20 degree celcius after 150 minutes

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3 years ago

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Nataliya [291]

Answer:

Step-by-step explanation:

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3 years ago

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kotegsom [21]

Answer:

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2 years ago

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cupoosta [38]

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2 years ago

2x2-50=0 me ajudem por favor e pra amanha

kvv77 [185]

Answer:

-46

Step-by-step explanation:

2×2=4-50 lol lol lol

3 0

3 years ago

Read 2 more answers