Question

Lisa has $7.80 to spend on some tomatoes and a loaf of bread tomatoes cost 1.20 a pound and a loaf of bread cost 1.80 the inequality is 1.20x+1.80< 7.80 _solve the inequality. how many pounds of Tomatoes can Lisa Buy

Answer 1

$\begin{gathered} 1.20x+1.80\le7.80 \\ \text{solving for x:} \\ \text{subract 1.80 from both sides:} \\ 1.20x+1.80\le7.80-1.80 \\ 1.20x\le6 \\ \text{divide both sides by 1.20} \\ \frac{1.20x}{1.20}\le\frac{6}{1.20} \\ x\le5 \end{gathered}$