Apples

[nycmath]

If 4 apples sell for $2.25, what is the price for 12 apples?

Hint: Set up proportion by letting x = cost for 12 apples.

[Eigenvalue]

x: cost of 12 apples
[tex]\frac{4}{2.25}[/tex]=[tex]\frac{12}{x}[/tex]
x=6.75

12 apples cost $6.75

Another way to solve this problem is just to multiply 2.25 by 3, as 12 is 4*3

[nycmath]

x: cost of 12 apples
[tex]\frac{4}{2.25}[/tex]=[tex]\frac{12}{x}[/tex]
x=6.75

12 apples cost $6.75

Another way to solve this problem is just to multiply 2.25 by 3, as 12 is 4*3

Very good.