Answer:
John did not make a mistake
Step-by-step explanation:
he did everything correct
7 gallons of pure acid and 14 gallons of 10% acid
8-4x^2+10x^2+2x
8+6x^2+2x
6x^2+2x+8
This is a quadratic equation since it has three terms. Now, a=6 (that is, a≠0) and therefore, it is a quadratic trinomial equation.
The correct answer is C.)
First you cross multiply.
2*(b-4)=6b
Then distribute the 2.
2b-8=6b
Minus 2b from each side.
-8=4b
Divide each side by 4.
-2=b
So -2 is your answer.
Hmmm idk if you want fractions but, 65/24 or 2 17/24 I think
