Answer:
Let x = amount (quarts) of pure antifreeze added
then
x + .10(2) = .40(x+2)
x + .20 = .40x+.80
x = .40x+.60
.60x = .60
x = 1.0 quart
Step-by-step explanation:
Hope this helps!
x + 2 < 5 <em>subtract 2 from both sides</em>
x < 3
x - 7 > -6 <em>add 7 to both sides</em>
x > 1
Answer: 1 < x < 3
Answer:
12x^2
Step-by-step explanation:
All you need to do is combine like terms
since 9x^2 and 3x^2 are like terms with the same variable and same degree, they can be combined to get 12x^2
And we are given that 
and want to find the value of x. Set f(x) to 16 and we get the equation:
Subtract both sides by 4
Divide both sides by 2
This is the answer. Let me know if you need any clarifications, thanks!
