Question

Heii mam dla was zadania z matematyki ! dodaje załączniki ;)
Pilnie potrzebne !!!

w zadaniu 5/123 załącznik MATEMATYKA !
potrzebne wszystkie przykłady ! ;)
zadania 6,7,8 oraz 9. w załączniku MATEMATYKA nr. 2

z góry dziękuje !

Answer 1

A)
(4-1¼:1⁹₁₆)x(-15⁵₈)=
(4-⁵₄x¹⁶₂₅)x(-120/8)=
(4-4/5)x(-15)=
1/5x(-15)=-3
b)
4/5-(1,2x5/12-0,8):(-1/8)=
4/5-(12/10x5/12-8/10)x(-8)=
4/5-(5/10-8/10)x(-8)=
4/5-(-3/8)x(-8)=
4/5-3=-2i1/5
c)
[2i2/3-25:12,5]/(9-6x1i1/6)x(-2)=
[8/3-2]/(9-7]x(-2)=
[2/3]/-4=
2/3x(-1/4)=-1/6

d)
[4/5x1i2/3-3,75]/5/9-10/27:(-5/6)=
[4/5x5/3-3i3/4]/5/9-10/27x(-6/5)=
[4/3-3i3/4]/5/9+4/9=
[16/12-45/12]/1=
29/12x1=2i5/12

Answer 2

5. a) (4 - 5/4 × 16/25) × (-125/8) = (4- 4/5) × (-125/8) = 3i1/5 × (-125/8) = 16/5 × (-125/8) = -50
b)
2i2/3 - 2 2/3 2/3 2/3
______________ = ___________= ___________= _____= 2/3 × (-1/4)=-1/6
(9-6 × 7/6) × (-2) (9-7) × (-2) 2× (-2) -4

c) 4/5 - (12/10 × 5/12 - 0,8) ÷ (-1/8) = 4/5 - (0,5 - 0,8) ÷ (-1/8) = 4/5 - 0,3 ÷ (-1/8) = 4/5 - 3/10 × (-8/1) = 4/5 - 12/5 = -8/5 = -1i3/5

d) 45/10 × 5/3 - 3,75 7,5 - 3,75 3,75
__________________= _____________= _____= 3,75
5/9 - 10/27 × (-6/5) 5/9 + 12/27 27/27


6. -3/4 ÷ 2 = -3/8
-8 + (-3/8) = -8 - 3/8 = -8i3/8

7. -3,6 × (-1,7) = 6,12
13,5 - 6,12 - 7,38

8. 1i3/5 + 1i2/3 = 8/5 + 5/3 = 8/15 + 25/15 = 33/15 = 2i1/5
-4 - (-1i2/3) = -4 + 1i2/3 = -2i1/3
2i1/5 ÷ (-21/3) = 11/5 × (-3/7) = -33/35

9. -4,8 ÷ (-2) = 2,4
-1/2 × 4/5 = -2/5
2,4 + (-2,5) = 2,4 - 0,4 = 2