Respuesta :

trishinada63

Set up a proportion:

6/20 = x/90

Meaning 6 saved over 20 and x saved over 90

Cross multiply

540 = 20x

x = 27

He saved $27

kara6703
He saves $6 out of every $20 - 90/20 = 4.5
And 4.5 x 6 = 27

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