65*1.60=$104
Hope that helps
To solve the set of equations given above, we can use the substitution
method where we substitute one equation to the other and solving for one
variable. We do as follows:
<span>0.4x - 0.1y = 2
x = 5 + 0.25y
0.2x + 0.5y = 1
</span>0.2(5 + 0.25y)+ 0.5y = 1
y = 0
x = 5
<span>Therefore, the correct answer from the choices is option A, (5,0).</span>
19.85/5 = $3.97 per gallon
$47.64/$3.97 = 12 gallons for $47.64