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Mathematics 15 Online
OpenStudy (anonymous):

Jane has a 5 × 7-inch photograph that she wants enlarged to a 10 × 14-inch photograph. What is the scale factor from the original photograph to the enlarged photograph? i need help understanding how to do this

OpenStudy (anonymous):

my choices are 1:2 2:1 5:7 10:14

OpenStudy (anonymous):

either 1 or 2

OpenStudy (anonymous):

no i think its a ratio

OpenStudy (anonymous):

choice 1 or 2 silly :P

OpenStudy (anonymous):

ooo :P explain ur reasoning

OpenStudy (johnweldon1993):

Well it'd be 1:2 because everything is doubled

OpenStudy (anonymous):

a:b is a to b small to big so i think 1:2

OpenStudy (anonymous):

yup you are enlargin. If it was 2:1 it be 2 to 1 which shrinks :D

OpenStudy (johnweldon1993):

Right @timo86m

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