M+f=35
f=5+m^2
sub 5+m^2 for f
m+5+m^2=35
m^2+m+5=35
minus 35 both sides
m^2+m-30=0
factor
what 2 numbers mulitply to get -30 and add to get 1
-5 and 6
(m-5)(m+6)=0
set to zto
m-5=0
m=5
m+6=0
m=-6
age can't be negative
max is 5
father is 30
12 dollars.
1+10=11
Then 4 quarters is $1 so you then add a dollar to get
$12
The setup looks like this:
0.4(10) + 4x = 0.3(14)
the 14 is the total amount of acid added.
4 + 4x = 4.2
4x = 0.2
x = 0.05 or 5 % acid solution
X = 3 my answer needs to be 20 characters
Answer:
X is less than or equal to -3
Hope that answers your question
