Question

Решите уравнение:
1) (0,87m-0,66)*10:2:3=0
2)10*(1,37k*0,12k):5:8=0​

Answer 1

$1)(0.87m - 0.66) \times 10 \div 2 \div 3 = 0$

$(0.87m - 0.66) \times 5 \times \frac{1}{3} = 0$

$( \frac{87}{100} m - \frac{33}{50} ) \times \frac{5}{3} = 0$

$\frac{29}{20} m - \frac{11}{10 } = 0$

$29m - 22 = 0$

$29m = 22$

$m = \frac{22}{29}$

$2)10 \times (1.37k \times 0.12k) \div 5 \div 8 = 0$

$10 \times ( \frac{137}{100} k \times \frac{3}{25}k) \times \frac{1}{5} \times \frac{1}{8} = 0$

$2 \times ( \frac{411}{2500} k^{2} ) \times \frac{1}{8} = 0$

$2 \times \frac{411 {k}^{2} }{2500} \times \frac{1}{8} = 0$

$\frac{411 {k}^{2} }{1250} \times \frac{1}{8} = 0$

$\frac{411 {k}^{2} }{10000} = 0$

$411 {k}^{2} = 0$

${k}^{2} = 0$

$k = 0$