Question

Alguien me explica porfa

Answer 1

La jerarquía se refiere al orden de realizar las operaciones (1 paréntesis, 2 raíces y potencias, 3 multiplicación y división y 4 sumas y restas)

A) 2 x 10/12 - 2/4 =

20/12 - 2/4 =

14/12 = 7/6 (RESULTADO)

B) 15 + 2 x 5 =

15 + 10 = 25 (RESULTADO)

C) 4 x 3/4 x 3 : 4 =

12/4 x 3 : 4 =

9/4

D) 56 + 25 : 7 + 1/2 =

56 + 25/7 + 1/2 =

56 + 50/14 + 7/14 =

841/14

Answer 2

Respuesta:

• 2 * ( 1/3 + 2/4 ) - 2 * 1/4

2 * 5/6 - 2 * 1/4

2 * 5/6 - 2 * 1/4

2 * 5/6 - 1/2

2 * 5/6 - 1/2

5/3 - 1/2

5/3  - 1/2

7/6

• 3 * 5 + [(15 / 5 + ( - 1 ))] * 5

15 + [(15 / 5 + ( - 1 ))] * 5

15 + [(15 / 5 + ( - 1 ))] * 5

15 + [(3 + ( - 1 ))] * 5

15 + [(3 + ( - 1 ))] * 5

15 + [( 3  - 1 )] * 5

15 + [( 2 )] * 5

15 + [( 2 )] * 5

15 + 10

25

Explicación paso a paso:

• 4 ( 1/2 + 2/4 ) * [5 + ( - 2 )] / 4

1 ( 1/2 + 2/4 ) * [5 + ( - 2 )]

1 ( 1/2 + 2/4 ) * [5 + ( - 2 )]

1 * 3/4 * [5 + ( - 2 )]

1 * 3/4 * [5 + ( - 2 )]

1 * 3/4 *   [ 5 - 2 ]

1 * 3/4 *   [ 5 - 2 ]

3/4 * [ 5 - 2 ]

3/4 * 3

3/4 * 3

9/4

• 7 *  [ 3 - ( - 5 )] + 25 / [ 4 - ( - 3 )] + 1/2

7 *  [ 3 + 5 ] + 25 / [ 4 - ( - 3 )] + 1/2

7 *  [ 3 + 5 ] + 25 / [ 4 - ( - 3 )] + 1/2

7 *  [ 3 + 5 ] + 25 / [ 4 + 3 ] + 1/2

7 *  [ 3 + 5 ] + 25 / [ 4  +3 ] + 1/2

7 *  8 + 25 / [ 4 + 3 ] + 1/2

7 *  8 + 25 / [ 4 + 3 ] + 1/2

7 *  8 + 25 / 7 + 1/2

7 *  8 + 25 / 7 + 1/2

56 + 25 / 7 + 1/2

56 + 25 / 7 + 1/2

841/14