Question

Determinati valoarea lui x din proporţiile:

a. x/8 = 3/4
b. 10/x = 5/6
c. 45/3 = 60/x
d. 2/17 = x/34
e. 5/8 = 70/x

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Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

Răspuns:

a. x/8 = 3/4

4x=3·8

4x=24⇒x=24:4⇒x=6

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b. 10/x = 5/6

5x=6·10

5x=60⇒x=60:5⇒x=12

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c. 45/3 = 60/x

45x=3·60

45x=180⇒x=180:45⇒x=4

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d. 2/17 = x/34

17x=2·34

17x=68⇒x=68:17⇒x=4

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e. 5/8 = 70/x

5x=8·70

5x=560⇒x=560:5⇒x=112