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Arch members knew section same grid thing here with the

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circles squares and triangles in the little dunce cap here

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right at the bottom I used to wear that a

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lot All right here we go men Last play at

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a moderate temperature Five milliliters water heats up at a

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rate of degrees centigrade for second amount of time It

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takes to keep water increases linearly when he'd in greater

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amount of water and water With these guys you're about

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one hundred meters of water for chemistry That's What you

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need to wait for the water to reach it's boiling

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point one hundred grand larceny attempted to raise your answer

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in your hand right We're going up seventy five degrees

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here from twenty five to one hundred boiling point and

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it's increasing at eight degrees centigrade per second Arithmetically Meaning

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steadily not geometrically or some other weird combo thing So

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how do we think about this Well if you're not

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a science fan pour you pretend that eduardo is actually

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trying to make soup or coffee or whatever parade for

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practice still applications Yet you too could be a barista

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someday five milliliters of water rises eight degrees centigrade in

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one second Since the problems says that heating time increases

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leaning yearly with greater amounts of water While set up

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a proportion to see how long it takes for three

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hundred milliliters they heat up eight degrees centigrade it right

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We have five milliliters is one second So three hundred

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millilitres is how many seconds Well yeah It's a minute

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Right Five over One three hundred over x Yeah The

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expression tells us that three hundred million litres of water

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heats up eight degrees centigrade in sixty seconds What a

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convenient cohen kid ink Sixty seconds is one minute and

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the problem wants the answer in minutes Who Who We

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can say that two Hundred million litres of water heats

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at eight degrees per minute Now we need to cook

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up an equation to see how long it takes to

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cook up the water Well the water temperature rises at

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eight degrees centigrade a minute So this value is the

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slope right there that represent the final temperature is sea

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in the number of minutes of eating time is t

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so c equals eight t one more thing The water's

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already at twenty five degrees If it were zero well

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we'd be playing around with ice Great for a hot

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summer day Not great for a problem like this to

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account for the water's initial temperature at twenty five is

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the why in earth except in the equation Yeah just

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c equals eighty plus twenty five hundred that's are boiling

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point Their equals eighty plus twenty five track t from

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outside to get seventy five equals eighteen Divide ate both

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sides And while you get about nine point four Well

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eduardo needs to wait nine point four minutes for that

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soup or coffee or chemistry experiment Tio a boil Maybe

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he can boil some tea while he waits Yeah Put

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that hot water to use

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