Question

7. Determină numărul x din proporţia:

Answer 1

Răspuns:

x/3=14/6 = produsul mezilor(3,14) supra celalalt extrem(6) =>x=14×3/6

x=42/6

x=7

2/x=8/40

x= produsul extremilor(2,40) supra celalalt mez(8)

x=2×40/8

×=80/8

×=10

35/25=x/5

x=produsul mezilor(35,5) supra celalalt extrem (25)

x=35×5/25

×=175/25

x=calculezi tu

27/9=42/x

x=produsul extremilor supra celalalt mez

x=42×9/27

x=378/27

x= calculezi tu

5x/6=135/54

x= produsul mezilor supra produsul extremilor

x=5×54/6×135

x=faci tu mai deprade

Answer 2

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