Rodrigo took a math quiz last week. He got 63 problems correct and 7 problems incorrect. What percentage did Rodrigo get correct?

Write your answer using a percent sign (%).

Respuesta :

Step-by-step explanation:

so, there were in total 63 + 7 = 70 questions.

therefore,

100% = 70

1% = 100%/100 = 70/100 = 0.7

to know how many % are the 63 correct answers we need to divide 63 by 1% :

63 / 0.7 = 90%

so, he got 90% correct.