On a 15 question test, a student got 9 correct answers, What percentaje of the problems did the student answer correctly?
Respuestas
Respuesta dada por:
2
Explicación paso a paso:
15 = 100%
9 = ?
9 = 60%
9×100=900
900÷15
60
Respuesta dada por:
2
Respuesta:
60%
Explicación paso a paso:
Hi! We can solve this problem with a simple "rule of three". We need to take into account what we know and what we want to know:
- we know that the 100% are the 15 questions on that test
- we want to know which percent are the 9 correct answers, so:
15 questions -------------------- 100% -->this is what we know
9 questions correct ------------ x =? --> this is what we want to know
x = 9questions correct . 100% / 15 questions
We solve this, and we find out that:
x = 60% --> this is the answer!
lozanosara927:
wow! Thanks a lot
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