4(8x-2)/3x=10
30% of 80
x= 2y, y= 4b and b=2
(3/7×8/9+5/12)−(2/5÷1/3)
$1.005638^{12}$
|x-3|
5 – 3y = 9z +15y
(x + 4y + 2z) if x= 2, y= 4 and z= 2
2x^2-7=0
Question 3
1 Mark
Concentration of copper in an alloy decreased by 15%
15% to 85
85 g. What was the original conce...