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
Question 10 Let y varies directly as x. if y = 12 when x = 4, then write a linear equation. What is the value of y when x = 5?
Your friend solved the equation in the box shown. What should your friend do to correct the error that he made?