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Cr916847
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dau coroana !
exercițiul 2 va rog !​

Dau Coroana Exercițiul 2 Va Rog class=

Răspuns :

Iakabcristina2

Răspuns:

1 - 1/2 = 1/2

1 - 1/3 = 2/3

1 - 1/4 = 3/4

1 - 1/5 = 4/5

x = 1/2 • 2/3 • 3/4 • 4/5

x = 1/5

y = (20-8-5)/20 • 36/(27-20)

y = 7/20 • 36/7

y = 9/5

M.a.=(1/5 + 9/5) : 2

M.a.=2:2=1

Anastasia6390
X= 2-1/2 * 3-1/3 *4-1/4 * 5-1/5
=1/2*2/3*3/4*4/5
=1

Y=20-8-5/20*36/27-20
=7/20*36/7
=9/5

Ma=x+y/2
=(1/5+9/5)*1/2
=10/5*1/2
=1

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