Question

pomoze ktos zadania z procentów klasa 7 plis na jutro to mam zrobić!​

Answer 1

Odpowiedź:

zad1.

a) 0.09

b) 0.65

c) 2.2

d) 0.125

zad2.

a)

[tex] \frac{9}{100} [/tex]

b)

[tex] \frac{65}{100} = \frac{13}{20} [/tex]

c)

[tex] \frac{220}{100} = 2 \frac{1}{5} [/tex]

d)

[tex] \frac{20}{100} = \frac{1}{5} [/tex]

zad3.

1. 0.5= 50%
2. 0.25= 25%
3. 0.16= 16%
4. 1.2= 120%

zad4.

a) 12%

b) 75%

c) 15%

d) 126%

zad5.

a)

[tex] \frac{550}{1} \times \frac{20}{100} = \frac{220}{2} = 110[/tex]

b)

[tex] \frac{72}{100} \times \frac{25}{1} = \frac{72}{4} = 8[/tex]

zad6.

[tex] \frac{60}{1} \times \frac{71}{100} = \frac{213}{5} = 42\frac{3}{5} = 42,6[/tex]

60-42.6=17.4

Odp. Zajęte jest 42.6 GB a wolne 17.4 GB

zad7.

a) 5*6=30

b)

[tex]x = \frac{100 \times 99}{15} = 660[/tex]