# How do you define a variable and write an expression for each phrase: the number of gallons in q quarts?

Apr 13, 2016

$\implies g = \frac{q}{4}$

See explanation.

#### Explanation:

I gallon is 'worth' 4 quarts

Let the number of gallons be $g$
Let the number of quarts be $q$

To find the number of gallons we need to count the quantity of 4's there are in the count of quarts.

$\implies g = q \div 4$

Or you can write

$\implies g = \frac{q}{4}$