[Music]
what's up sixth-graders welcome back
Anthony here thank you again for joining
me on this problem this is a very wordy
question so let's go ahead and work on
it together we'll break it down and find
the solution now to convert a
temperature from degrees Fahrenheit to
degrees Celsius the temperature in
degrees Fahrenheit is subtracted by 32
and then the difference is multiplied by
zero point five six
our task here is to write an expression
that can be used to convert a
temperature from degrees Fahrenheit F
two degrees Celsius C and then use that
expression to convert 86 degrees
Fahrenheit to degrees Celsius so you
have to do two things here okay so
before we do anything let's stop take a
deep breath and think about what's going
on here what is this question asking us
to do I know there's a lot of words it's
a lot going on okay if we look at the
second part we have to do two things one
is write an expression that can be used
to convert from Fahrenheit we'll call it
f to Celsius C and then we also have to
use that expression to convert 86
degrees Fahrenheit to degrees Celsius so
first we have to model and expression
and then use that expression so we know
that we want to convert degrees
Fahrenheit to degrees Celsius
now the first part of the question told
us that if we want to convert between F
and C we take F the number of degrees in
Fahrenheit and then take that anything
is subtracted by 32 so we have to
subtract 32 from F and then take that
whole difference so we're going to wrap
it up in parentheses and multiply that
entire difference by point 5 6 now keep
in mind here if you forget those
parentheses this will not be correct
because then you would only be
multiplying that minus 32 by point 5 6
and not the whole difference so the
parentheses are very important here oh
cool so what did we just do we just
figured out an expression that can be
used to convert from F to C from
Fahrenheit to Celsius so the second part
said to use the expression to convert 86
degrees Fahrenheit to degrees Celsius so
I'm going to replace that F with 86
and now all we have to do is evaluate 86
- 32 equals 54 and 54 multiplied by 0.5
6 is equal to 30 point 2 4 which is the
number of degrees in Celsius and that's
it for that one and we wouldn't actually
have to do questions like this if the
USA would adopt the metric system like
the rest of the world so I'll catch you
guys next time see ya cool all right so
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