Question

Mă puteți ajuta la ex. 9,12,14!

Vă rog! Vă rog! Vă rog! Vă rog! Vă rog! ​

Answer 1

9) a) Md 39= (1,3,13,39)

cel mai mare=39

cel mai mic=1

b) 6^3==6×6×6=216

Md 216 =(1,2,3,4,6,8,9,12,18,24,27,36,54,72,108,216)

cel mai mic=1

cel mai mare=216

c)10^7=10×10×10×10×10×10×10=10,000,000

cel mai mic=1

cel mai mare=10,000,000

d)15^5=15×15×15×15×15=759,375

cel mai mic=1

cel mai mare=759,375

(Md=multimea divizorilor)

12) a) 6.....9

Mm 6=(6,12,18,24,30,36,42,48,54,60,66,72,78,84, 90,96,102,108,114,120,126,132,138,144,150,156,162, 168,174,180................6K)

Mm9=(9,18,27,36,45,54,63,72,81,90,99,108,117,126, 135,144,153,162,171,180...........9K)

primi 5 multipli comuni sunt= 18,36,54,72,90

b)10.....15

Mm 10=(10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290......10k)

Mm 15=(15,30,45,60,75,90,105,120,135,150,165,180......15K)

primi 5 multipli comuni sunt= 30,60,90,120,150

c) 14....21....28

Mm 14=(14,28,42,56,70,84,98,112,126,140,154,168,

182,196,210,224,238,252,266,280,294,308,322, 336,350,364,378,392,406,420..............14k....)

Mm 21=(21,42,63,84,105,126,147,168,189,210,231, 252,273,294,315,336,357,378,399,420......21k....)

Mm 28=(28,56,84,112,140,168,196,224,252,280, 308,336,364,392,420......28k.....)

primi 5 multipli comuni sunt =84,168,252,336,420

d) 20......30....50

Mm 20=(20,40,60,80,100,120,140,160,180,200,220,240,260,280,300,320,340,360,380,400,420,440,460,480,500,520,540,560,580,600,620,640,660,680,700,720,740,760,780,800,820,840,860,880, 900,920,940,960,980,1000,1020,1040,1060,1080,

1100,1120,1140,1160,1180,1200,1220,1240,1260,1280,1300,1320,1340,1360,1380,1400,1420,1440,1460,1480,1500......20k...)

Mm 30= (30,60,90,120,150,180,210,240,270,300, 330,360,390,420,450,480,510,540,570,600,630,660,690,720,750,780,810,840,870,900,930,960, 990,1020,1050,1080,1110,1140,1170,1200,1230,1260, 1290,1320,1350,1380,1410,1440,1470,1500....30k....)

Mm 50= (50,100,150,200,250,300,350,400,450,

500,550,600,650,700,750,800,850,900,950,1000,1050,1100,1150,1200,1250,1300,1350,1400,1450,1500.......50k....)

primi 5 multipli comuni sunt=300,600,900, 1200, 1500

14) n:9=a (r=8)

n:12=b (r=8)

n:15=c (r=8)

n=9×a+8=12×b+8=15×c+8

=>9a=12b=15c

9a+12b+15c+(8+8+8)=3n

9a+12b+15c+24=3n

188:9=20 (8)

188:12=15 (8)

188:15=12 (8)

R: cel mai mic nr n=188

Coroana?????