jaynyangel
contestada

If a and b are two digits, then the following fraction
(ab0+ab0ab)÷(ab) -1 is equal to.

A.21 B. 1010
C. 110
D. 111
E. 1110​

Respuesta :

mhanifa

Answer:

B. 1010

Step-by-step explanation:

Simplify:

  • (ab0+ab0ab) ÷ (ab) - 1

Note that:

  • ab = 10a +b
  • ab0 = 10* (10a + b) = 10ab
  • ab0ab = 1000ab + ab = 1001 ab

Therefore:

  • (ab0+ab0ab) ÷ (ab) - 1 =
  • (10ab + 1001ab) ÷ (ab) - 1 =
  • (1011ab) ÷ (ab) - 1 =
  • 1011 - 1=
  • 1010

Correct choice is B.1010

emma75620
The answer to this is B.

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