Question

Ajutați mă va rog îmi trebuie urgent

Answer 1

Răspuns:

1. M={0,1,2,3}

N={3,4,5,6}

P={0,2,4}

Q={9,11,13}

2. A={5,7,9}

5+7+9=21

3. A={3,8,5,12,10,6}

B={3,6,9,8,11}

a) A u B = {3,5,6,8,9,10,11,12}

b) A n B ={3,6,8}

c) A/B= {5,10,12}

d)B/A={9,11}

card A u B = 8

card B/A= 2

4. X=?

Y=?

X n Y ={3,7,9}

X/Y={5,11,13}

X u Y= {1,2,3,6,7,9,11,13}

X={3,7,9,5,11,13}

Y={3,7,9,1,2,3,6}

5. 3200 kg orez

Prima zi

3/5 din 3200 kg orez s-au vandut,adica 3×3200/5=9600/5=1920 kg orez vanduti

adica au mai ramas 1280 kg orez

A doua zi

1/5 din 1280 kg orez s-au vandut,adica 1×1280/5=1280/5=256 kg orez vanduti

Adica au mai ramas 1024 kg orez.