Find the linear equation for moose population P over time t years since 1990. Predict the population in 2003. P(t)=4940+(6100−4940)⋅8t Predict the moose population in 2003 to be P(13)=7260.
Find the inverse function of y=1250−67x where y is Thomas' elevation (ft) and x is time (s). Determine which of the following equations could be the inverse: 1:y=67x−1250, 2:x=1250−67y, 3:y=67x−1250, 4:y=671250−x.
Find a linear function P(x) that models the percentage of residents in a large city who regularly used newspapers for news, where P(x) is the percentage x years after 2000, and the percentage decreased by 1.2% per year from an initial 54% in 2000.
P(x)=54−1.2x
Solve a system of equations using substitution: word problems. Leo and Nancy sell cookie dough, with Leo selling 4 tubs/day and Nancy selling 6 tubs/day. Find the number of days and tubs each will sell when they sell the same amount.