Math  /  Algebra

Question(1) You can use the expression 59(F32)\frac{5}{9}(F-32) to find a temperature in degrees Celsius when you know the temperature Fin degrees Fahrenhelt. The temperature of a room is 7777^{\circ} Fahrenheit. What is the temperature of the room in degrees Celslus? Show your work.

Studdy Solution

STEP 1

What is this asking? Given a formula to convert Fahrenheit to Celsius, what's the temperature in Celsius if the room is 77 degrees Fahrenheit? Watch out! Don't forget to follow the order of operations, and make sure your units are correct!

STEP 2

1. Substitute the Fahrenheit value.
2. Calculate the difference.
3. Multiply the fraction by the difference.

STEP 3

Alright, let's **kick things off**!
We're given this super cool formula to convert Fahrenheit to Celsius: 59(F32) \frac{5}{9}(F-32) .
Our mission?
To find the Celsius temperature when FF is **77 degrees** Fahrenheit.

STEP 4

So, let's **substitute** our Fahrenheit value, which is **77**, into the formula.
This gives us 59(7732) \frac{5}{9}(77-32) .
See? We just **replaced** FF with **77**!

STEP 5

Next up, we need to tackle the **parentheses** first!
Remember the **order of operations**, PEMDAS/BODMAS?
Parentheses/Brackets come before anything else.

STEP 6

Inside the parentheses, we have 773277 - 32.
This gives us **45**.
So, our expression now looks like this: 5945 \frac{5}{9} \cdot 45 .
Remember, parentheses mean multiply!

STEP 7

Now, we're going to **multiply** our fraction by the result we just got.
Remember, multiplying fractions is as easy as pie.

STEP 8

We have 5945 \frac{5}{9} \cdot 45 .
We can rewrite 45 as 451\frac{45}{1}.
So, we have 59451\frac{5}{9} \cdot \frac{45}{1}.

STEP 9

Now, multiply the numerators (top numbers) together: 545=2255 \cdot 45 = 225.
Then, multiply the denominators (bottom numbers) together: 91=99 \cdot 1 = 9.
This gives us 2259 \frac{225}{9} .

STEP 10

Finally, we **divide** 225 by 9.
And guess what?
We get **25**!

STEP 11

So, the temperature of the room in degrees Celsius is **25 degrees**!

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