Andrew is a submarine commander. he decides to surface his submarine to periscope depth. it takes him 20 minutes to get from a depth of 400 feet to a depth of 50 feet. write an equation in point-slope form that describes this situation. what was the submarine's depth five minutes after it started surfacing?

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5