Question

Please help I'll give a medal! What scale factor would we use to enlarge a picture from a 3x5 to 15x25? What scale factor would shrink a 12x16 to a 3x4?

Answer 1

3*5 basically tells u the dimensions of the pic...so...if u enlarge each side x times ...u 'll get the dimensions equal to 15*25...u need to find x...so x will be equal to the ratio of the older dimensions to the new dimensions...as u can see increasing the older photoghaph 5 times gives u the dimension of the new photo...(3*5)*(5*5)=15*25..get it?..try the next one urself..