X - 3 = 7
add 3 to both sides
x - 3 + 3 = 7 + 3
x = 10
addition property of equality
20*1.95 =39 girls
26girls/39girls =0.667
0.667*100 = 66.67%
7.5795 ounces of the bar are silver.
Answer:
The vector equation of the line is
l(t)= "-3,3,-5" + t "-2,-4,-4", where t is a parameter.
