Chapter 4: Problem 80
Solve the equation. $$ 7 b=21 $$
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Solve the equation if possible. $$ 3 n=5 n-12 $$
Write the equation in slope-intercept form. Then graph the equation. $$ x+2 y-6=0 $$
Is the given number a solution of the inequality? $$8+5 x<-2 ;-2$$
Is the given number a solution of the inequality? $$4 x-1>10 ; 3$$
They can be used to estimate the average number of hours \(h\) per week that a household in the United States watches television programs. In all three models, \(t\) is the number of years since \(1985 .\) Hours spent watching television: \(h=0.57 t+54.85\) Hours spent watching talk shows: \(\quad h=0.35 t+4.06\) Hours spent watching game shows: \(h=-0.2 t+3.4\) According to the model, in what year will a household watch an average of 10 hours of talk shows per week?
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