A recipe that serves 8 calls for 1 1/2
pounds of ground beef. How many
pounds are needed to serve 12?

Question

A recipe that serves 8 calls for 1 1/2
pounds of ground beef.  How many 
pounds are needed to serve 12?

johnweldon1993 · Answer

Hmm well we can set up a proportion

$$\frac{ 8 }{ 1.5 } = \frac{ 12 }{ x }$$

Cross multiply and solve for 'x'

anonymous · Answer

I tried that and for some reason it didn't come out right..

johnweldon1993 · Answer

So lets see....

8 times x = 8x

12 times 1.5 = 18

so we have

$$8x = 18$$

Now we divide both sides by 8 to solve for 'x' and we get

$$x = 2.25$$

anonymous · Answer

|dw:1373564662091:dw|

Got it this time!! :D