Question

the sum of a number and 6% of itself is 42.4. find the number​

Answer 1

Step-by-step explanation:

let the number be x

$x + 0.06x = 42.4 \\ 1.06x = 42.4 \\ x = \frac{42.4}{1.06} \\ x = 40$

Answer 2

Answer:

let the number = x

6% of x = 6/100×x

= 6x/100

x + 6x/100 = 42.4

100x +6x/ 100 = 42.4

106x/100 = 42.4

106x =42.4×100

106x = 4240

x = 4240/106

x = 40