The linear function that models the population of 0 rainbow smelt is y1 = -19.76x + 227, where
x = the years since 1990 and y1 = the number of
rainbow smelt.
e
The linear function that models the population of
bloater fish is Y2
=
The linear equation that determines when the two
populations were equal is
The solution is x = 11.33 years.

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?

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Macy spent $36 on jeans. this was $12 less than twice what she spent on a shirt. which equation to solve this, 12x=36 2x=36-12 2x-12=36 12-2x=36