Mathematics, 18.12.2020 01:20 robert7248
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Which of the following situations could be described by the equation y = 120 – 25x?
A) There are 120 people in the football stadium, and 25 more are entering each hour.
B) A plumber charges $25 for a house call and $120 per hour.
C) A teacher has 120 students. Her third period has 25 students.
D) There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute.
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Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?
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Which of the following situations could be described by the equation y = 120 – 25x?
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