I got it wrong on khan academy and this is what it said....
In conclusion, point M represents a scenario where the mixture has the intended volume and has more than the intended percent of butterfat.
So, your answer to this problem is
x > 6 and
x < -2.
(2x+3)*4 is less than or equal to 10. For x, the number, you would get x is greater than or equal to -1/4.
23
%
=
23
100
=
0.23
First we have to think that the symbol
%
=
1
100
so that
23
%
=
23
⋅
(
1
100
)
this is read twenty three percent is equal to twenty three multiplied by one divided by one hundred.
the result is the fraction
23
100
Now, to convert to decimal, simply divide 23 by 100
23
÷
10
=
2.3
and
2.3
÷
10
=
0.23
this is the same as
23
÷
100
=
0.23
