Question

in a two-digit number, the digit at tens place is 1 more than the digit at unit place. if the product of the digits is 20, find the number:​

Answer 1

Answer:

54

Step-by-step explanation:

find all factors of 20:

2,4,5,10

You can see that the answer must include 4 and 5

And as the tens place is one more than units, the answer must be 54 (fifty-four)

Answer 2

Answer:

square root 19

Step-by-step explanation:

(1+x) multiplied by (x) = 20

(1+x) multiplied by (x) = 20therefore, x multiplied by x = 20-1

(1+x) multiplied by (x) = 20therefore, x multiplied by x = 20-1 x multiplied by x = 19

(1+x) multiplied by (x) = 20therefore, x multiplied by x = 20-1 x multiplied by x = 19hence, x^2 = 19