Answer:
59.4/ 82.5 = 9/12.5
Step-by-step explanation:
6.6/p = 9/12.15
A fraction equal with another fraction, so we can cross multiply to to have a multiplication equal another multiplication.
6.6 * 12.5 = 9* p
To isolate p (our unknown) we divide both sides by 9
( 6.6 * 12.5) /9 = (9* p)/ 9
( 6.6 * 12.5) /9 = p
82.5 / 9 = p
The proportion is:
6.6/p = 9/12.15, substitute p = 82.5 / 9
6.6/(82.5/9) = 9/12.15, use that: a / (b/c) = (a/1 )*(c/b) = (a*c) / b
(6.6*9)/82.5 = 9/12.5
59.4/ 82.5 = 9 /12.5
