Question

urgent dau coroniță toata pagina ​

Answer 1

Explicație pas cu pas:

1) 8÷8×8+8×8-8=6×10+4

1×8+64-8=60+4

8+64-8=64

64=64

2) 5×[(4×3+44÷(2+3×3)]-0÷8 > 909÷9

5×[(4×3+44÷(2+9)]-0÷8 > 101

5×(12+44÷11)-0 > 101

5×(12+4)-0 > 101

5×16 > 101

3) 32.703-24.844÷4+10×4 > 3 250×3+735÷3

32.703-6.211+40 > 9.750+245

26.492+40 > 9.995

26.532 > 9.995

4) { [a+(1308:12)]×15}-1000:100=8255

[(a+109)×15]-10=8255

(a+109)×15=8255+10

(a+109)×15=8265

15a+1635=8265

15a=8265-1635

15a=6630

a=6630:15

a=442

5) (120×12+250×45)÷5-x=2507

(1440+11250)÷5-x=2507

12690÷5-x=2507

2538-x=2507

2538-2507=x

31=x

6) [(y+540÷6)×7-100]:4:5=30

[(y+90)×7-100]:4:5=30

(7y+630-100):4=30×5

(7y+630-100):4=150

7y+630-100=150×4

7y+630-100=600

7y+630=600+100

7y+630=700

7y=700-630

7y=70

y=70÷7

y=10