A photographer wants to use a scale factor of 2.5 to enlarge a picture. What will the area of the picture be after it is enlarged?

40 in2

250 in2

100 in2

81.9 in

Question

A photographer wants to use a scale factor of 2.5 to enlarge a picture. What will the area of the picture be after it is enlarged?

 40 in2

 250 in2

 100 in2

 81.9 in

magallar23 · Answer

What's the original area of the picture?

jenessa_2413 · Answer

attachment

magallar23 · Answer

since it's a 1:2.5 factor, we multiply each side by 2.5 first.

magallar23 · Answer

8in * 2.5 = 20 in

5in * 2.5 = 12.5 in

thecatman · Answer

its not c is my only hint

magallar23 · Answer

Now we multiply the sides to get the area. 

20in * 12.5in = 250 in^2 

Can someone double check my work. Thank you

thecatman · Answer

your right

jenessa_2413 · Answer

so its B???