Respuesta :

salatulmaghrib
One way to do this is to multiply both sides of the proportion by 21.
This gives:
20/28 x 5 = n
First simplify the fraction 20/28 to 5/7 (GCF 4)
5/7 x 5 = n
Now solve this and get n:
25/7 = n
mekay04
28n = 420
/28. /28
n=15

i simplified the proportion and then divided by 28 and got the answer n=15