28-09-2020
Mathematics

contestada

On the math pretest Michael got 6 questions correct. On the post-test, he got 21 correct. What is his percent increase?

Respuesta :

jadeeden jadeeden

28-09-2020

Answer:

350%

Step-by-step explanation:

6 questions would be a 100% increase, and 6 times 3 is 18 questions, so that is 300%. the 3 questions left equal 50%, so the total is 350%.

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