Question

Zadanie 17/52 matematyka z plusem 3

Daję naj, dzięki i dobry komentarz na profilu

Answer 1

A) -4 * (2 1/8) = -4 * 17/8 = -68/8 = -8 1/2 = 8,5
b) -3 1/7 : 11 = -22/7 :11 = -22/7 * 1/11 = -22/77 = -2/7
c) 2 1/4 : (-1 1/2) = 9/4 : (-3/2) = 9/4 * (-2/3) = -18/12 = -3/2
d) -1.21 + 5.1 = 3.89
e) -3.24 * (-0.2) = 0.648
f) 0.24 : (-0.4) = (-0.6)
g) 2 3/4 * (-0.5) = 11/4 * (-1/2) = -11/8 = -1 3/8
h) - 2/3 - 1/3 = 2 19/30
i) -3.75 : (-1 1/4) = -3,75 : (- 5/4) = -3,75 * (- 4/5) = -3,75 * (-0,8) = 3
j) 1/3 : (- 0,7) = 1/3 : (- 7/10) = 1/3 * (-10/7) = -10/21