Ответ:
Пошаговое объяснение:
2.
1) -2,75 : 3. 2/3 = -2. 75/100 : 3. 2/3 = -2. 3/4 : 3. 2/3 = -11/4 : 11/3 = -11/4 * 3/11 = -3/4
2) 2. 1/3 : 4,375 = 2. 1/3 : 4. 375/1000 = 2. 1/3 : 4. 3/8 = 7/3 : 35/8 = 7/3 * 8/35 = 1/3 * 8/5 = 8/15
3) -3/4 + 8/15 = -45/60 + 32/60 = -13/60
4) -13/60 * 2. 3/26 = -13/60 * 55/26 = -1/12 * 11/2 = -11/24
Ответ: - 11/24
3.
= 25х - 20х + 12в - 10 - 6х + 2в = -х + 14в - 10
-1*(-4,6) + 14*0,46 - 10 =
4,6 + 6,44 - 10 = 1,04
Ответ: 1,04
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Answers & Comments
Ответ:
Пошаговое объяснение:
2.
1) -2,75 : 3. 2/3 = -2. 75/100 : 3. 2/3 = -2. 3/4 : 3. 2/3 = -11/4 : 11/3 = -11/4 * 3/11 = -3/4
2) 2. 1/3 : 4,375 = 2. 1/3 : 4. 375/1000 = 2. 1/3 : 4. 3/8 = 7/3 : 35/8 = 7/3 * 8/35 = 1/3 * 8/5 = 8/15
3) -3/4 + 8/15 = -45/60 + 32/60 = -13/60
4) -13/60 * 2. 3/26 = -13/60 * 55/26 = -1/12 * 11/2 = -11/24
Ответ: - 11/24
3.
= 25х - 20х + 12в - 10 - 6х + 2в = -х + 14в - 10
-1*(-4,6) + 14*0,46 - 10 =
4,6 + 6,44 - 10 = 1,04
Ответ: 1,04