Question

1 450 - 450 - 3) - 103
(
y=500 m
- 10x50-y.
300
CR=2460m
4:2:3- 200 = 210
(45x5x3: 3) – 25 x 4 +Zx3 = 2 273

Answer 1

Răspuns:

1450 - ( 450 : 3 ) - 10 × 50 - y = 300

1450 - 150 - 10 × 50 - y = 300

1450 - 150 - 500 - y = 300

1300 - 500 - y = 300

800 - y = 300

y = 800 - 300

y = 500

( 45 × 5 × 3 : 3 ) - 25 × 4 + z × 3 = 2273

( 225 × 3 : 3 ) - 25 × 4 + z × 3 = 2273

( 675 : 3 ) - 25 × 4 + z × 3 = 2273

225 - 100 + z × 3 = 2273

125 + z × 3 = 2273

z × 3 = 2273 - 125

z × 3 = 2148

z = 2148 : 3

z = 716