Question

Va rog va dau coroana!!!

Answer 1

8.a) 45

b) 225:5

c) S= (5+225)×45:2=5175

6.a) a*(b+c)= 145* 100= 14500

b)2a*(b+c) = 145*2*100= 29000

c) a*(5b+5c) =145*5*100= 72500

d) 3a+b+c= 3*45+100= 435+100= 535

e) 3a+2b+2c = 3*145+2*100=635

f)ab+ac= 145*100= 14500

5. 1pachet=24cutii

1cutie=12creioane

45504:12= 3792 cutii

3692:24 = 158 pachete

9. a:b=5, rest7 => a=b*5+7

a-b=67

b*5+7-b=67 => b=15

a-15=67 => a=82

calculati:

a) 5

b) 1

c) 7