Question

1. a chemist started an experiment with 5 grams of a chemical. the chemical is used at a rate of 0.01 grams per minute. which equation can be used to find c, the amount of chemical remaining after t minutes? a. c = 0.01t - 5 b. c = 5 - 0.01t c. c = 5.01t d. c = 4.99t

Explanation:

Step1: Identify initial - amount and rate

The chemist starts with 5 grams (initial amount) and the chemical is used at a rate of 0.01 grams per minute.

Step2: Set up the equation

The amount of chemical remaining $c$ is the initial amount minus the amount used. The amount used is the rate times the time $t$. So $c = 5-0.01t$.

Answer:

B. $c = 5 - 0.01t$