Respuesta :

Answer:

Step-by-step explanation:

4/x=2/10

cross multiplication:

4*10=2*x

40=2x

x=40/2=20

w/2 = 4.5/6.8

6.8w=2(4.5)

6.8w=9

w=9/6.8=1.32352941

ftevaaa
the answer for 1 is 40/2=20

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