15 is equal to x divided by 3 plus 7
Let's write it down:
<span>"60 is 75% of s" means:
60=75%*s
75% is
, (percent just means "out of 100" so we just divide it by 100) so we can also write:
60=</span><span>
s
now, let's multiply both sides by 4:
240=3s
and divide by 3:
80=s
So we have the result that the original value, s, is 80!
</span>
the answer is none of the above because the variable cant be combined and 56 cant either.
It is simple
you do 45,600 divided by 22
which equals about 2,072.72