allytripathi18 allytripathi18

15-05-2020
Mathematics

contestada

Zaira is getting 2 questions wrong per every seven. In total 245 questions how many is she getting wrong?

Respuesta :

JoyMark JoyMark

15-05-2020

Answer:

70 questions

Step-by-step explanation:

You can make a proportion.

[tex]\frac{2}{7} =\frac{x}{245}[/tex]

Multiply across:

7x=490

Divide by 7:

x=70

Final answer

70 questions

Answer Link

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