ГДЗ по математике 5 класс Мерзляк ФГОС Задание 949

 

\[\boxed{\ \mathbf{949\ (949)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ x = 0,08:\]

\[3,4x + 5,6x = 9x \cdot 0,08 = 0,72.\]

\[2)\ a = 0,26:\]

\[5,4a - 3,9a = 1,5a =\]

\[= 1,5 \cdot 0,26 = 0,39\]

\[3)\ m = 3,94:\]

\[1,8m - 0,5m + 0,7m = 2m =\]

\[= 2 \cdot 3,94 = 7,88.\]

\[4)\ z = 8,2:\]

\[0,19z - 0,12z + 0,33z - 1,92 =\]

\[= 0,4z - 1,92 =\]

\[= 0,4 \cdot 8,2 - 1,92 =\]

\[= 3,28 - 1,92 = 1,36.\]

\[\boxed{\mathbf{949}.\ }\]

\[1)\ \frac{a}{5} = \frac{6}{15}\]

\[\frac{a}{5} = \frac{2}{5} \Longrightarrow a = 2.\]

\[2)\ \frac{1}{12} = \frac{4}{a}\]

\[\frac{4}{48} = \frac{4}{a} \Longrightarrow a = 48.\]

\[3)\ \frac{56}{70} = \frac{8}{a}\]

\[\frac{8}{10} = \frac{8}{a} \Longrightarrow a = 10.\]

\[4)\ \frac{a}{60} = \frac{6}{5}\]

\[\frac{a}{60} = \frac{72}{60} \Longrightarrow a = 72.\]