Question 717735
ASSIGN VARIABLES
L=10%
H=70%
T=30%
u=UNKNOWN amount for L material
v=300 oz. for H material


Arrange Rational Equation
{{{highlight((uL+vH)/(u+v)=T)}}}
Solve for u, the only unknown variable.


Suitable steps should follow, and be equivalent to formula:
{{{highlight(u=v(H-T)/(T-L))}}}.


Substitute known, given values to find the value for u.