If 135 = x10, what is the value of ‘x’?
6
12
16
8
Convert the mixed fraction into the improper fraction, 135 =1×5+35=85 Solving the equation we get, 85=x10 ⇒8×10=5×x ⇒x=805
Hence, x=16
If the product of the roots of x2–3x+k=10 is –2, then find the value of k.