Math, asked by hasfour, 4 months ago

Help plz, Thank you!!

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Answered by nagu14

0

Answer:

may be 11 oil changes

this answer may be

Answered by vaishnavisri2006

2

Answer:

let the no of oil changes be x

91=7

x=11

by cross multiplication

91*11=7x

1001=7x

143=x

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