Question

The initial amount of sugar in fermenting a batch of beer is 5.5grams. Over time the sugar decreases at a rate of 0.1grams per day.

a. what is the amount of sugar that remains after 7 days? 23days?

b. If A represents the amount of sugar, write an equation for the amount of sugar that remains after x days?


Thanks in advance!

Answer 1

I know in real life it is not linear, but maybe I know too much.

As a linear function:
SugarRemaining=5.5-0.1 D

so put in 7, then 23

for your equation,

A= 5.5 - .1 x