Выручка методом прямого счета была рассчитана на основе следующих данных: Наименование изделий Остатки на начало года

Решение
2000*100 + 2200*120 + 3100*250 = 1239000
200000*100 + 20000*120 + 400000*250 = 122400000
1500*100 + 3000*120 + 3000*250 = 1260000
1239000 + 122400000 – 1260000 = 122 379 000

№1

а) (-0,75; 2,75)

б) (0,1875; -5,25)

 

№2

б) n=2/3, m=1/3

в) z=3. y=-0.6

 

6m-9n=-4

2m+5n=4 / * -3

 

6m-9n=-4

-6m-15n=-12

способ сложения

 

-9n-15n=-4-12

-24n=-16

n=2/3

 

2m+5n=4

2m+5*2/3=4

m=1/3

 

 

б) 5y+8z=21  / * -2

      10y-3z=-15

 

    -10y-16z=-42

      10y-3z=-15

      способ сложения

 

      -16z-3z=-42-15

        -19z=-57

          z=3

 

      5y+8z=21

      5y+8*3=21

      5y=21-24

      5y=-3

      y=-0.6

 

 

 

1)  suddenly mr. bunting felt anything take hold of the back of his neck.

did mr. bunting suddenly feel anything take hold of the back of his neck?

did mr. bunting suddenly feel anything take hold of the back of his neck or his arms?

suddenly mr. bunting felt anything take hold of the back of his neck, didn't he?

who felt suddenly   anything take hold of the back of the neck?

what did mr. bunting feel?

 

2)  he was unable to lift his head.

was he unable to lift his head?

was he unable to lift his head or neck?

he was unable to lift his head, wasn't he?

who was unable to lift his head?

what was he unable to lift?

 

3)  mr.bunting looked at cuss, whose face had turned white with fear.

did mr.bunting look at cuss, whose face had turned white with fear?

did mr.bunting or mr.brown look at cuss, whose face had turned white with fear?

mr bunting looked at cuss, whose face had turned white with fear, didn't he?

who looked at cuss?

whom did mr.bunting look at?