Ответ:
Пошаговое объяснение:
1. a)(7-13)*(-8) = -6 * (-8) = 48
в) (-2/5 - 1/3) / (- 2 1/5) = -11/15 : (-11/5) = -11/15 * (-5/11) = 1/3
2. 25,63*(-2,7) + (-15,63)(-2,7) = -2,7 * (25,63 - 15,63) = -2,7 * 10 = -27
1.
А)
1) 7 - 13 = -6
2) -6 * (-8) = 48
В)
1) -2/5 - 1/3 = -6/15 - 5/15 = -11/15
2) -11/15 / -2. 1/5 = -11/15 : (-11/5) = -11/15 * (-5/11) = -1/3 * (-1/1) = 1/3
2.
-2,7 * (25,63 + (-15,63)) =
-2,7 * (25,63 - 15,63) =
-2,7 * 10 = -27
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Ответ:
Пошаговое объяснение:
1. a)(7-13)*(-8) = -6 * (-8) = 48
в) (-2/5 - 1/3) / (- 2 1/5) = -11/15 : (-11/5) = -11/15 * (-5/11) = 1/3
2. 25,63*(-2,7) + (-15,63)(-2,7) = -2,7 * (25,63 - 15,63) = -2,7 * 10 = -27
Ответ:
Пошаговое объяснение:
1.
А)
1) 7 - 13 = -6
2) -6 * (-8) = 48
В)
1) -2/5 - 1/3 = -6/15 - 5/15 = -11/15
2) -11/15 / -2. 1/5 = -11/15 : (-11/5) = -11/15 * (-5/11) = -1/3 * (-1/1) = 1/3
2.
-2,7 * (25,63 + (-15,63)) =
-2,7 * (25,63 - 15,63) =
-2,7 * 10 = -27