Incorrect. Use the following chart to help you identify the relationships:

Acidity

Amount of sol.
(liters)

Amount of acid
(liters)

Sol. 1 10% * $\displaystyle{x}\usepackage{cmbright}\Huge\$ = $\displaystyle{0.10}{\left({x}\right)}\usepackage{cmbright}\Huge\$

Sol. 2 25% * $\displaystyle{40}-{x}\usepackage{cmbright}\Huge\$ = $\displaystyle{0.25}{\left({40}-{x}\right)}\usepackage{cmbright}\Huge\$

Mix 20% * 40 = 8

What relationship can you create to solve for x?

	Acidity		Amount of sol. (liters)		Amount of acid (liters)
Sol. 1	10%	*	$\displaystyle{x}\usepackage{cmbright}\Huge\$	=	$\displaystyle{0.10}{\left({x}\right)}\usepackage{cmbright}\Huge\$
Sol. 2	25%	*	$\displaystyle{40}-{x}\usepackage{cmbright}\Huge\$	=	$\displaystyle{0.25}{\left({40}-{x}\right)}\usepackage{cmbright}\Huge\$
Mix	20%	*	40	=	8