Question

40% of a number when added to yge square of the same number, then it is increased to 4040% of itself, the actual number is
a. 175
b. 400
c. 40
d. 120 ​

Answer 1

Answer:

Step-by-step explanation:

(40/100)x+x^2=(40/100)x

(40x+100x^2)/100=(40/100)x

(40x+100x^2)=40x

100x^2=1

x^2=1/100

x=1/10

Answer 2

Answer:

x^2 +40x/100 = 4040x/100

10x^2 + 4x = 404x

10x^2 = 400x

x= 0, 40

Step-by-step explanation:

c. 40