Question

calculați:
a) 4•10°27'=
b) (2/9-1/3)•6/10+1/8=

ajutor dau teză​

Answer 1

Explicație pas cu pas:

a) 4 × 10°27'

=41°48'

b)

$( \frac{2}{9} - \frac{1}{3} ) \times \frac{6}{10} + \frac{1}{8}$

$( \frac{2}{9} - \frac{3}{9} ) \times \frac{6}{10} + \frac{1}{8}$

$\frac{2 - 3}{9} \times \frac{6}{10} + \frac{1}{8}$

$- \frac{1}{9} \times \frac{3}{5} + \frac{1}{8}$

$\frac{ - 3}{9 \times 5} + \frac{1}{8}$

$\frac{ - 3}{45} + \frac{1}{8}$

$- \frac{1}{15} + \frac{1}{8}$

$- \frac{8}{120} + \frac{15}{120}$

$\frac{ - 8 + 15}{120}$

$\frac{7}{120}$

Answer 2

Răspuns:

Explicație pas cu pas:

a) 4•10°27' = 40°108' = 41°48'

b) (2/9 - 1/3)•6/10 + 1/8 = (2/9 - 3/9)•6/10 + 1/8 = -1/9*6/10 + 1/8 = -1/15 + 1/8

= -8/120 + 15/120 = 7/120