Question #6403796Single Choice
Math
Question
A biologist wants to understand how a certain hormone affects digestion in rats, so she designs an experiment during which some rats will be injected with the hormone. Seven technicians work in the biologist’s lab, and each one can inject one rat with the hormone per minute. Which of the following equations could be used to model the number of rats, y, still waiting to be injected after x minutes if the biologist wants to inject a total of 119 rats in her study?
Options
A
y = 7x + 119
B
y = 7x - 119
C
7x + y = 119
D
7y + x = 119
Answer & Analysis
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