MairOgrady13 MairOgrady13

26-09-2018
Mathematics

contestada

A student answers 90% of the questions on a math exam correctly. If he answers 18 questions correctly, how many questions are on the exam?

Respuesta :

sciencegeekgirl2017 sciencegeekgirl2017

26-09-2018

x=total questions on quiz

90/100=18/x

1800=90x

x=20

There were 20 questions on the quiz.

Answer Link

helijahwoods helijahwoods

26-09-2018

There are 20 questions.

Answer Link

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