keeping in mind that an acre has 4840 yd², and therefore it has 43560 ft², then how many acres are there in 174240 ft²?
[tex]\bf \begin{array}{ccll}
ft^2&acres\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
43560&1\\
174240&a
\end{array}\implies \cfrac{43560}{174240}=\cfrac{1}{a}\implies a=\cfrac{174240\cdot 1}{43560}\implies a=4[/tex]
so 174240 is 4 acres, what is the price of 0.4 of 4 acres, if each acre is 1500?
well, the price for all 4 acres will be 1500*4.
what is 0.4 of that? well, is just the product of 0.4 * (1500 * 4).
