Matematyka zadanie 7

[tex]a)\ \ \frac{3}{5}\cdot0,1-10,08=0,6\cdot0,1-10,08=0,06-10,08=-10,02\\\\b)\ \ 5+(-3\frac{1}{6})\cdot0,6=5-3\frac{1}{6}\cdot\frac{6}{10}=5-\frac{19}{\not6_{2} }\cdot\frac{\not3^1}{5}=5-\frac{19}{10}=4\frac{10}{10}-1\frac{9}{10}=3\frac{1}{10}\\\\c)\ \ 5,75:(-\frac{1}{4})+25=-5,75:0,25+25=-23+25=2[/tex]

[tex]d)\ \ 2\frac{1}{3}-3,5:1\frac{3}{7}=2\frac{1}{3}-\frac{35}{10}:\frac{10}{7}=2\frac{1}{3}-\frac{7}{2}\cdot\frac{7}{10}=\frac{7}{3}-\frac{49}{20}=\frac{140}{60}-\frac{147}{60}=-\frac{7}{60}[/tex]

Tojamikiviz Tojamikiviz · Answer 2

Tojamikiviz Tojamikiviz

Odpowiedź:

a0

3/5 * 0,1 - 10,8 = 0,6 * 0,1 - 10,8 = 0,06 - 10,8 = -10,2

b)

5 + (-3 1/6) *0,6 = 5 - 19/6 * 6/10 = 5 - 19/10 = 5 - 1,9 = 3,1

c)

3,75 : (-1/4) + 25 = -3 3/4 * 1/4 + 25 = -15/4 * 1/4 + 25 = -15 + 25 = 10

d)

2 1/3 - 3,5 : 1 3/7 = 2 1/3 - 35/10 : 10/7 = 2 1/3 - 7/2 * 7/10 = 2 1/3 - 49/20 =

= 2 1/3 - 2 9/20 = 2 20/60 - 2 27/60 = -27/60 = -9/20

Szczegółowe wyjaśnienie:

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