Respuesta :
4.5. you just halve the vertical since 25 is 1/2 of 50.
another way is to make a proportion
25 x
—— = ——
50 9
50x = 225
—— ———
50 50
x = 4.5 or 4 1/2
another way is to make a proportion
25 x
—— = ——
50 9
50x = 225
—— ———
50 50
x = 4.5 or 4 1/2