Question

repede matematica cl a 5 a​

Answer 1

a)

$\frac{x + x - 10.9}{2} = 16.95 \\ x + x - 10.9 = 16.95 \times 2 \\ 2x - 10.9 = 33.9 \\ 2x = 33.9 + 10.9 \\ 2x = 44.8 \\ x = 44.8 \div 2 \\ x = 22.4$

primul nr 22.4

al doilea nr 22.4-10.9=11.5

Answer 2

a)Ma=a-b/2=>16,95

a=10,9

(10,9-b):2=16,95

10,9-b=16,95•2=>33,9

b=33,9+10,9

b=44

b)Ma=a•b/2=>16,95

a=2•b

(2b•b):2=>16,95=>33,9

3b=>33,9

b=33,9:3

b=11,3