On the blueprint of a house, 48 millimeters represents 9 meters. The length of the living room is 32 millimeters on the blueprint. What is the actual length of the living room?

Question

noseboy908 · Answer

For this you're going to have to use ratios. Do you know how to set up one for the first part?

anonymous · Answer

no all i need help with is setting the equation up

noseboy908 · Answer

Ok. Firstly, take the first two given pieces of information. "48 mm represents 9 meters". Now, a ratio can take multiple forms, 2 of which being "x:y" or "x/y", where x and y are given amounts. So, try using the "x/y" on here. How would you set that part up?

jdoe0001 · Answer

$\large \begin{array}{ccllll}
blueprint&original\
\hline\
48&9\
32&x
\end{array}\implies \bf \cfrac{48}{32}=\cfrac{9}{x}$

anonymous · Answer

well i got it now thank you both

jdoe0001 · Answer

yw