SOLUTION: Bens grandfather was listening to the weather report which indicated that the maximum for the day was going to be 30C. He wants to know what the temperature is in F Using c/5 = (

Question 917000: Bens grandfather was listening to the weather report which indicated that the maximum for the day was going to be 30C. He wants to know what the temperature is in F
Using c/5 = (f-32)/2
Someone had helped & had gotten
9/5(30)+32
54+32
f = 86
I just don't get how we get the 9/5
Help please?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
There are two main temperature scales:
�F, the Fahrenheit Scale (used in the US), and
�C, the Celsius Scale (part of the Metric System, used in most other countries)
They both measure the same thing (temperature!), but use different numbers:

Boiling water (at normal pressure) measures � in Celsius, but � in Fahrenheit
And as water freezes it measures � in Celsius, but � in Fahrenheit.

The scales start at a different number ( vs ), so we will need to add or subtract .
The scales rise at a different rate ( vs ), so we will also need to multiply.
And so, to convert:
from Celsius to Fahrenheit: first multiply by , then add

from Fahrenheit to Celsius: first subtract , then multiply by

But can be simplified to ,
and can be simplified to , so this is the easiest way:

�C to �F multiply by , then divide by, then add
�F to �C deduct , then multiply by , then divide by

We can write each as a formula like this:

Celsius to Fahrenheit:
Fahrenheit to Celsius:
so, you got

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